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Finding the Fourth Proportional to 8,515,866.92, 12,773,981.88 and 3,051,318.69

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Solution

The fourth proportional to 8,515,866.92, 12,773,981.88 and 3,051,318.69 is: 4,577,043.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515,866.92 : 12,773,981.88 = 3,051,318.69 : x
  2. Step 2: Convert to fraction form
    8,515,866.92/12,773,981.88 = 3,051,318.69/x
  3. Step 3: Cross multiply
    8,515,866.92x = 12,773,981.88 × 3,051,318.69
  4. Step 4: Simplify right side
    8,515,866.92x = 38,977,489,656,165.34
  5. Step 5: Solve for x
    x = 38,977,489,656,165.34/8,515,866.92
  6. Step 6: Final answer
    x = 4,577,043.07

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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.