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Finding the Fourth Proportional to 57,944.80, 86,861.72 and 18,480.16

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Solution

The fourth proportional to 57,944.80, 86,861.72 and 18,480.16 is: 27,702.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,944.80 : 86,861.72 = 18,480.16 : x
  2. Step 2: Convert to fraction form
    57,944.80/86,861.72 = 18,480.16/x
  3. Step 3: Cross multiply
    57,944.80x = 86,861.72 × 18,480.16
  4. Step 4: Simplify right side
    57,944.80x = 1,605,218,483.48
  5. Step 5: Solve for x
    x = 1,605,218,483.48/57,944.80
  6. Step 6: Final answer
    x = 27,702.55

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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.