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Finding the Fourth Proportional to 51,492.76, 71,061.08 and 29,136.76

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Solution

The fourth proportional to 51,492.76, 71,061.08 and 29,136.76 is: 40,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,492.76 : 71,061.08 = 29,136.76 : x
  2. Step 2: Convert to fraction form
    51,492.76/71,061.08 = 29,136.76/x
  3. Step 3: Cross multiply
    51,492.76x = 71,061.08 × 29,136.76
  4. Step 4: Simplify right side
    51,492.76x = 2,070,489,633.30
  5. Step 5: Solve for x
    x = 2,070,489,633.30/51,492.76
  6. Step 6: Final answer
    x = 40,209.33

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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.