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Finding the Fourth Proportional to 61,765.71, 92,647.89 and 15,018.63

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Solution

The fourth proportional to 61,765.71, 92,647.89 and 15,018.63 is: 22,527.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,765.71 : 92,647.89 = 15,018.63 : x
  2. Step 2: Convert to fraction form
    61,765.71/92,647.89 = 15,018.63/x
  3. Step 3: Cross multiply
    61,765.71x = 92,647.89 × 15,018.63
  4. Step 4: Simplify right side
    61,765.71x = 1,391,444,380.19
  5. Step 5: Solve for x
    x = 1,391,444,380.19/61,765.71
  6. Step 6: Final answer
    x = 22,527.78

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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.