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Finding the Fourth Proportional to 40,231, 60,355.14 and 15,607

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Solution

The fourth proportional to 40,231, 60,355.14 and 15,607 is: 23,413.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,231 : 60,355.14 = 15,607 : x
  2. Step 2: Convert to fraction form
    40,231/60,355.14 = 15,607/x
  3. Step 3: Cross multiply
    40,231x = 60,355.14 × 15,607
  4. Step 4: Simplify right side
    40,231x = 941,962,669.98
  5. Step 5: Solve for x
    x = 941,962,669.98/40,231
  6. Step 6: Final answer
    x = 23,413.85

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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.