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Finding the Fourth Proportional to 22,687.52, 31,304.16 and 13,254.26

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Solution

The fourth proportional to 22,687.52, 31,304.16 and 13,254.26 is: 18,288.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,687.52 : 31,304.16 = 13,254.26 : x
  2. Step 2: Convert to fraction form
    22,687.52/31,304.16 = 13,254.26/x
  3. Step 3: Cross multiply
    22,687.52x = 31,304.16 × 13,254.26
  4. Step 4: Simplify right side
    22,687.52x = 414,913,319.20
  5. Step 5: Solve for x
    x = 414,913,319.20/22,687.52
  6. Step 6: Final answer
    x = 18,288.18

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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.