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Finding the Fourth Proportional to 28,593.88, 42,882.62 and 9,869.06

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Solution

The fourth proportional to 28,593.88, 42,882.62 and 9,869.06 is: 14,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,593.88 : 42,882.62 = 9,869.06 : x
  2. Step 2: Convert to fraction form
    28,593.88/42,882.62 = 9,869.06/x
  3. Step 3: Cross multiply
    28,593.88x = 42,882.62 × 9,869.06
  4. Step 4: Simplify right side
    28,593.88x = 423,211,149.74
  5. Step 5: Solve for x
    x = 423,211,149.74/28,593.88
  6. Step 6: Final answer
    x = 14,800.76

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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.