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Finding the Fourth Proportional to 57,459.99, 86,189.99 and 18,020.28

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Solution

The fourth proportional to 57,459.99, 86,189.99 and 18,020.28 is: 27,030.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,459.99 : 86,189.99 = 18,020.28 : x
  2. Step 2: Convert to fraction form
    57,459.99/86,189.99 = 18,020.28/x
  3. Step 3: Cross multiply
    57,459.99x = 86,189.99 × 18,020.28
  4. Step 4: Simplify right side
    57,459.99x = 1,553,167,753.00
  5. Step 5: Solve for x
    x = 1,553,167,753.00/57,459.99
  6. Step 6: Final answer
    x = 27,030.42

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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.