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Finding the Fourth Proportional to 60,081.40, 90,126.92 and 17,958.40

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Solution

The fourth proportional to 60,081.40, 90,126.92 and 17,958.40 is: 26,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,081.40 : 90,126.92 = 17,958.40 : x
  2. Step 2: Convert to fraction form
    60,081.40/90,126.92 = 17,958.40/x
  3. Step 3: Cross multiply
    60,081.40x = 90,126.92 × 17,958.40
  4. Step 4: Simplify right side
    60,081.40x = 1,618,535,280.13
  5. Step 5: Solve for x
    x = 1,618,535,280.13/60,081.40
  6. Step 6: Final answer
    x = 26,939.04

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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.