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Finding the Fourth Proportional to 29,070.38, 40,118.40 and 17,134.22

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Solution

The fourth proportional to 29,070.38, 40,118.40 and 17,134.22 is: 23,645.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,070.38 : 40,118.40 = 17,134.22 : x
  2. Step 2: Convert to fraction form
    29,070.38/40,118.40 = 17,134.22/x
  3. Step 3: Cross multiply
    29,070.38x = 40,118.40 × 17,134.22
  4. Step 4: Simplify right side
    29,070.38x = 687,397,491.65
  5. Step 5: Solve for x
    x = 687,397,491.65/29,070.38
  6. Step 6: Final answer
    x = 23,645.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.