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Finding the Fourth Proportional to 61,872.46, 92,814.05 and 19,758.53

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Solution

The fourth proportional to 61,872.46, 92,814.05 and 19,758.53 is: 29,639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,872.46 : 92,814.05 = 19,758.53 : x
  2. Step 2: Convert to fraction form
    61,872.46/92,814.05 = 19,758.53/x
  3. Step 3: Cross multiply
    61,872.46x = 92,814.05 × 19,758.53
  4. Step 4: Simplify right side
    61,872.46x = 1,833,869,472.78
  5. Step 5: Solve for x
    x = 1,833,869,472.78/61,872.46
  6. Step 6: Final answer
    x = 29,639.51

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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.