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Finding the Fourth Proportional to 8,784,886.60, 13,177,329.90 and 7,399,203.40

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Solution

The fourth proportional to 8,784,886.60, 13,177,329.90 and 7,399,203.40 is: 11,098,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784,886.60 : 13,177,329.90 = 7,399,203.40 : x
  2. Step 2: Convert to fraction form
    8,784,886.60/13,177,329.90 = 7,399,203.40/x
  3. Step 3: Cross multiply
    8,784,886.60x = 13,177,329.90 × 7,399,203.40
  4. Step 4: Simplify right side
    8,784,886.60x = 97,501,744,199,001.67
  5. Step 5: Solve for x
    x = 97,501,744,199,001.67/8,784,886.60
  6. Step 6: Final answer
    x = 11,098,805.10

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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.