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Finding the Fourth Proportional to 8,858,609.80, 13,287,914.70 and 5,654,217.40

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Solution

The fourth proportional to 8,858,609.80, 13,287,914.70 and 5,654,217.40 is: 8,481,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858,609.80 : 13,287,914.70 = 5,654,217.40 : x
  2. Step 2: Convert to fraction form
    8,858,609.80/13,287,914.70 = 5,654,217.40/x
  3. Step 3: Cross multiply
    8,858,609.80x = 13,287,914.70 × 5,654,217.40
  4. Step 4: Simplify right side
    8,858,609.80x = 75,132,758,506,455.78
  5. Step 5: Solve for x
    x = 75,132,758,506,455.78/8,858,609.80
  6. Step 6: Final answer
    x = 8,481,326.10

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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.