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Finding the Fourth Proportional to 18,105.60, 25,101.36 and 17,464.08

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Solution

The fourth proportional to 18,105.60, 25,101.36 and 17,464.08 is: 24,211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.60 : 25,101.36 = 17,464.08 : x
  2. Step 2: Convert to fraction form
    18,105.60/25,101.36 = 17,464.08/x
  3. Step 3: Cross multiply
    18,105.60x = 25,101.36 × 17,464.08
  4. Step 4: Simplify right side
    18,105.60x = 438,372,159.15
  5. Step 5: Solve for x
    x = 438,372,159.15/18,105.60
  6. Step 6: Final answer
    x = 24,211.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.