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Finding the Fourth Proportional to 19,432.56, 29,123.52 and 14,113.56

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Solution

The fourth proportional to 19,432.56, 29,123.52 and 14,113.56 is: 21,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,432.56 : 29,123.52 = 14,113.56 : x
  2. Step 2: Convert to fraction form
    19,432.56/29,123.52 = 14,113.56/x
  3. Step 3: Cross multiply
    19,432.56x = 29,123.52 × 14,113.56
  4. Step 4: Simplify right side
    19,432.56x = 411,036,546.93
  5. Step 5: Solve for x
    x = 411,036,546.93/19,432.56
  6. Step 6: Final answer
    x = 21,151.95

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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.