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Finding the Fourth Proportional to 71,891.04, 107,818.04 and 29,782.92

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Solution

The fourth proportional to 71,891.04, 107,818.04 and 29,782.92 is: 44,666.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,891.04 : 107,818.04 = 29,782.92 : x
  2. Step 2: Convert to fraction form
    71,891.04/107,818.04 = 29,782.92/x
  3. Step 3: Cross multiply
    71,891.04x = 107,818.04 × 29,782.92
  4. Step 4: Simplify right side
    71,891.04x = 3,211,136,059.88
  5. Step 5: Solve for x
    x = 3,211,136,059.88/71,891.04
  6. Step 6: Final answer
    x = 44,666.71

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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.