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Finding the Fourth Proportional to 8,305,485.60, 12,458,228.40 and 8,305,485.60

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Solution

The fourth proportional to 8,305,485.60, 12,458,228.40 and 8,305,485.60 is: 12,458,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,485.60 : 12,458,228.40 = 8,305,485.60 : x
  2. Step 2: Convert to fraction form
    8,305,485.60/12,458,228.40 = 8,305,485.60/x
  3. Step 3: Cross multiply
    8,305,485.60x = 12,458,228.40 × 8,305,485.60
  4. Step 4: Simplify right side
    8,305,485.60x = 103,471,636,577,711.03
  5. Step 5: Solve for x
    x = 103,471,636,577,711.03/8,305,485.60
  6. Step 6: Final answer
    x = 12,458,228.40

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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.