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Finding the Fourth Proportional to 61,719.92, 92,560.74 and 22,271.88

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Solution

The fourth proportional to 61,719.92, 92,560.74 and 22,271.88 is: 33,400.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,719.92 : 92,560.74 = 22,271.88 : x
  2. Step 2: Convert to fraction form
    61,719.92/92,560.74 = 22,271.88/x
  3. Step 3: Cross multiply
    61,719.92x = 92,560.74 × 22,271.88
  4. Step 4: Simplify right side
    61,719.92x = 2,061,501,693.99
  5. Step 5: Solve for x
    x = 2,061,501,693.99/61,719.92
  6. Step 6: Final answer
    x = 33,400.91

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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.