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Finding the Fourth Proportional to 57,443.90, 86,165.88 and 18,004.08

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Solution

The fourth proportional to 57,443.90, 86,165.88 and 18,004.08 is: 27,006.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,443.90 : 86,165.88 = 18,004.08 : x
  2. Step 2: Convert to fraction form
    57,443.90/86,165.88 = 18,004.08/x
  3. Step 3: Cross multiply
    57,443.90x = 86,165.88 × 18,004.08
  4. Step 4: Simplify right side
    57,443.90x = 1,551,337,396.79
  5. Step 5: Solve for x
    x = 1,551,337,396.79/57,443.90
  6. Step 6: Final answer
    x = 27,006.13

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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.