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Finding the Fourth Proportional to 14,863.20, 22,251.60 and 13,135.20

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Solution

The fourth proportional to 14,863.20, 22,251.60 and 13,135.20 is: 19,664.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,863.20 : 22,251.60 = 13,135.20 : x
  2. Step 2: Convert to fraction form
    14,863.20/22,251.60 = 13,135.20/x
  3. Step 3: Cross multiply
    14,863.20x = 22,251.60 × 13,135.20
  4. Step 4: Simplify right side
    14,863.20x = 292,279,216.32
  5. Step 5: Solve for x
    x = 292,279,216.32/14,863.20
  6. Step 6: Final answer
    x = 19,664.62

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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.