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Finding the Fourth Proportional to 57,591.64, 86,412.42 and 28,035.16

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Solution

The fourth proportional to 57,591.64, 86,412.42 and 28,035.16 is: 42,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,591.64 : 86,412.42 = 28,035.16 : x
  2. Step 2: Convert to fraction form
    57,591.64/86,412.42 = 28,035.16/x
  3. Step 3: Cross multiply
    57,591.64x = 86,412.42 × 28,035.16
  4. Step 4: Simplify right side
    57,591.64x = 2,422,586,020.69
  5. Step 5: Solve for x
    x = 2,422,586,020.69/57,591.64
  6. Step 6: Final answer
    x = 42,064.89

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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.