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Finding the Fourth Proportional to 57,999.28, 86,984.72 and 18,548.22

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Solution

The fourth proportional to 57,999.28, 86,984.72 and 18,548.22 is: 27,817.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,999.28 : 86,984.72 = 18,548.22 : x
  2. Step 2: Convert to fraction form
    57,999.28/86,984.72 = 18,548.22/x
  3. Step 3: Cross multiply
    57,999.28x = 86,984.72 × 18,548.22
  4. Step 4: Simplify right side
    57,999.28x = 1,613,411,723.20
  5. Step 5: Solve for x
    x = 1,613,411,723.20/57,999.28
  6. Step 6: Final answer
    x = 27,817.79

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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.