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Finding the Fourth Proportional to 8,312,340.80, 11,608,933.60 and 8,312,340.80

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Solution

The fourth proportional to 8,312,340.80, 11,608,933.60 and 8,312,340.80 is: 11,608,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312,340.80 : 11,608,933.60 = 8,312,340.80 : x
  2. Step 2: Convert to fraction form
    8,312,340.80/11,608,933.60 = 8,312,340.80/x
  3. Step 3: Cross multiply
    8,312,340.80x = 11,608,933.60 × 8,312,340.80
  4. Step 4: Simplify right side
    8,312,340.80x = 96,497,412,407,770.88
  5. Step 5: Solve for x
    x = 96,497,412,407,770.88/8,312,340.80
  6. Step 6: Final answer
    x = 11,608,933.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.