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Finding the Fourth Proportional to 57,703.80, 86,562.45 and 18,264.90

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Solution

The fourth proportional to 57,703.80, 86,562.45 and 18,264.90 is: 27,399.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,703.80 : 86,562.45 = 18,264.90 : x
  2. Step 2: Convert to fraction form
    57,703.80/86,562.45 = 18,264.90/x
  3. Step 3: Cross multiply
    57,703.80x = 86,562.45 × 18,264.90
  4. Step 4: Simplify right side
    57,703.80x = 1,581,054,493.01
  5. Step 5: Solve for x
    x = 1,581,054,493.01/57,703.80
  6. Step 6: Final answer
    x = 27,399.49

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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.