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Finding the Fourth Proportional to 61,354.56, 92,031.84 and 19,807.68

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Solution

The fourth proportional to 61,354.56, 92,031.84 and 19,807.68 is: 29,711.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,354.56 : 92,031.84 = 19,807.68 : x
  2. Step 2: Convert to fraction form
    61,354.56/92,031.84 = 19,807.68/x
  3. Step 3: Cross multiply
    61,354.56x = 92,031.84 × 19,807.68
  4. Step 4: Simplify right side
    61,354.56x = 1,822,937,236.53
  5. Step 5: Solve for x
    x = 1,822,937,236.53/61,354.56
  6. Step 6: Final answer
    x = 29,711.52

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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.