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Finding the Fourth Proportional to 18,587.52, 27,881.28 and 9,839.52

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Solution

The fourth proportional to 18,587.52, 27,881.28 and 9,839.52 is: 14,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.52 : 27,881.28 = 9,839.52 : x
  2. Step 2: Convert to fraction form
    18,587.52/27,881.28 = 9,839.52/x
  3. Step 3: Cross multiply
    18,587.52x = 27,881.28 × 9,839.52
  4. Step 4: Simplify right side
    18,587.52x = 274,338,412.19
  5. Step 5: Solve for x
    x = 274,338,412.19/18,587.52
  6. Step 6: Final answer
    x = 14,759.28

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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.