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Finding the Fourth Proportional to 19,405.31, 29,060.17 and 11,064.74

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Solution

The fourth proportional to 19,405.31, 29,060.17 and 11,064.74 is: 16,569.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,405.31 : 29,060.17 = 11,064.74 : x
  2. Step 2: Convert to fraction form
    19,405.31/29,060.17 = 11,064.74/x
  3. Step 3: Cross multiply
    19,405.31x = 29,060.17 × 11,064.74
  4. Step 4: Simplify right side
    19,405.31x = 321,543,052.44
  5. Step 5: Solve for x
    x = 321,543,052.44/19,405.31
  6. Step 6: Final answer
    x = 16,569.85

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1.5x scale

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.