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Finding the Fourth Proportional to 14,505.30, 20,018.07 and 8,839.17

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Solution

The fourth proportional to 14,505.30, 20,018.07 and 8,839.17 is: 12,198.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.30 : 20,018.07 = 8,839.17 : x
  2. Step 2: Convert to fraction form
    14,505.30/20,018.07 = 8,839.17/x
  3. Step 3: Cross multiply
    14,505.30x = 20,018.07 × 8,839.17
  4. Step 4: Simplify right side
    14,505.30x = 176,943,123.80
  5. Step 5: Solve for x
    x = 176,943,123.80/14,505.30
  6. Step 6: Final answer
    x = 12,198.52

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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.