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Finding the Fourth Proportional to 19,712.16, 29,516.40 and 15,098.40

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Solution

The fourth proportional to 19,712.16, 29,516.40 and 15,098.40 is: 22,607.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,712.16 : 29,516.40 = 15,098.40 : x
  2. Step 2: Convert to fraction form
    19,712.16/29,516.40 = 15,098.40/x
  3. Step 3: Cross multiply
    19,712.16x = 29,516.40 × 15,098.40
  4. Step 4: Simplify right side
    19,712.16x = 445,650,413.76
  5. Step 5: Solve for x
    x = 445,650,413.76/19,712.16
  6. Step 6: Final answer
    x = 22,607.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.