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Finding the Fourth Proportional to 14,472.12, 19,966.68 and 8,879.88

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Solution

The fourth proportional to 14,472.12, 19,966.68 and 8,879.88 is: 12,251.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,472.12 : 19,966.68 = 8,879.88 : x
  2. Step 2: Convert to fraction form
    14,472.12/19,966.68 = 8,879.88/x
  3. Step 3: Cross multiply
    14,472.12x = 19,966.68 × 8,879.88
  4. Step 4: Simplify right side
    14,472.12x = 177,301,722.40
  5. Step 5: Solve for x
    x = 177,301,722.40/14,472.12
  6. Step 6: Final answer
    x = 12,251.26

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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.