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Finding the Fourth Proportional to 18,088.55, 24,963.05 and 10,918.31

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Solution

The fourth proportional to 18,088.55, 24,963.05 and 10,918.31 is: 15,067.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,088.55 : 24,963.05 = 10,918.31 : x
  2. Step 2: Convert to fraction form
    18,088.55/24,963.05 = 10,918.31/x
  3. Step 3: Cross multiply
    18,088.55x = 24,963.05 × 10,918.31
  4. Step 4: Simplify right side
    18,088.55x = 272,554,318.45
  5. Step 5: Solve for x
    x = 272,554,318.45/18,088.55
  6. Step 6: Final answer
    x = 15,067.78

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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.