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Finding the Fourth Proportional to 71,642.26, 107,457.72 and 29,510.92

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Solution

The fourth proportional to 71,642.26, 107,457.72 and 29,510.92 is: 44,264.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,642.26 : 107,457.72 = 29,510.92 : x
  2. Step 2: Convert to fraction form
    71,642.26/107,457.72 = 29,510.92/x
  3. Step 3: Cross multiply
    71,642.26x = 107,457.72 × 29,510.92
  4. Step 4: Simplify right side
    71,642.26x = 3,171,176,178.30
  5. Step 5: Solve for x
    x = 3,171,176,178.30/71,642.26
  6. Step 6: Final answer
    x = 44,264.04

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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.