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Finding the Fourth Proportional to 13,894,605.72, 20,841,957.72 and 9,838,825.02

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Solution

The fourth proportional to 13,894,605.72, 20,841,957.72 and 9,838,825.02 is: 14,758,272.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,894,605.72 : 20,841,957.72 = 9,838,825.02 : x
  2. Step 2: Convert to fraction form
    13,894,605.72/20,841,957.72 = 9,838,825.02/x
  3. Step 3: Cross multiply
    13,894,605.72x = 20,841,957.72 × 9,838,825.02
  4. Step 4: Simplify right side
    13,894,605.72x = 205,060,375,081,318.12
  5. Step 5: Solve for x
    x = 205,060,375,081,318.12/13,894,605.72
  6. Step 6: Final answer
    x = 14,758,272.33

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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.