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Finding the Fourth Proportional to 18,587.88, 25,644.99 and 10,624.47

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Solution

The fourth proportional to 18,587.88, 25,644.99 and 10,624.47 is: 14,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,587.88 : 25,644.99 = 10,624.47 : x
  2. Step 2: Convert to fraction form
    18,587.88/25,644.99 = 10,624.47/x
  3. Step 3: Cross multiply
    18,587.88x = 25,644.99 × 10,624.47
  4. Step 4: Simplify right side
    18,587.88x = 272,464,426.91
  5. Step 5: Solve for x
    x = 272,464,426.91/18,587.88
  6. Step 6: Final answer
    x = 14,658.18

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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.