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Finding the Fourth Proportional to 57,040.19, 85,560.29 and 15,487.19

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Solution

The fourth proportional to 57,040.19, 85,560.29 and 15,487.19 is: 23,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,040.19 : 85,560.29 = 15,487.19 : x
  2. Step 2: Convert to fraction form
    57,040.19/85,560.29 = 15,487.19/x
  3. Step 3: Cross multiply
    57,040.19x = 85,560.29 × 15,487.19
  4. Step 4: Simplify right side
    57,040.19x = 1,325,088,467.69
  5. Step 5: Solve for x
    x = 1,325,088,467.69/57,040.19
  6. Step 6: Final answer
    x = 23,230.79

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Double scale
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Similar ratio
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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.