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Finding the Fourth Proportional to 18,062.98, 24,871.53 and 15,812.26

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Solution

The fourth proportional to 18,062.98, 24,871.53 and 15,812.26 is: 21,772.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,062.98 : 24,871.53 = 15,812.26 : x
  2. Step 2: Convert to fraction form
    18,062.98/24,871.53 = 15,812.26/x
  3. Step 3: Cross multiply
    18,062.98x = 24,871.53 × 15,812.26
  4. Step 4: Simplify right side
    18,062.98x = 393,275,098.96
  5. Step 5: Solve for x
    x = 393,275,098.96/18,062.98
  6. Step 6: Final answer
    x = 21,772.44

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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.