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Finding the Fourth Proportional to 8,305,674.30, 12,458,511.45 and 8,305,674.30

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Solution

The fourth proportional to 8,305,674.30, 12,458,511.45 and 8,305,674.30 is: 12,458,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,674.30 : 12,458,511.45 = 8,305,674.30 : x
  2. Step 2: Convert to fraction form
    8,305,674.30/12,458,511.45 = 8,305,674.30/x
  3. Step 3: Cross multiply
    8,305,674.30x = 12,458,511.45 × 8,305,674.30
  4. Step 4: Simplify right side
    8,305,674.30x = 103,476,338,366,520.72
  5. Step 5: Solve for x
    x = 103,476,338,366,520.72/8,305,674.30
  6. Step 6: Final answer
    x = 12,458,511.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.