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Finding the Fourth Proportional to 55,266.20, 82,899.29 and 13,713.20

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Solution

The fourth proportional to 55,266.20, 82,899.29 and 13,713.20 is: 20,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,266.20 : 82,899.29 = 13,713.20 : x
  2. Step 2: Convert to fraction form
    55,266.20/82,899.29 = 13,713.20/x
  3. Step 3: Cross multiply
    55,266.20x = 82,899.29 × 13,713.20
  4. Step 4: Simplify right side
    55,266.20x = 1,136,814,060.57
  5. Step 5: Solve for x
    x = 1,136,814,060.57/55,266.20
  6. Step 6: Final answer
    x = 20,569.79

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Similar ratio
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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.