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Finding the Fourth Proportional to 61,892.72, 92,840.96 and 15,145.68

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Solution

The fourth proportional to 61,892.72, 92,840.96 and 15,145.68 is: 22,718.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,892.72 : 92,840.96 = 15,145.68 : x
  2. Step 2: Convert to fraction form
    61,892.72/92,840.96 = 15,145.68/x
  3. Step 3: Cross multiply
    61,892.72x = 92,840.96 × 15,145.68
  4. Step 4: Simplify right side
    61,892.72x = 1,406,139,471.05
  5. Step 5: Solve for x
    x = 1,406,139,471.05/61,892.72
  6. Step 6: Final answer
    x = 22,718.98

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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.