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Finding the Fourth Proportional to 57,766.76, 86,653.01 and 18,320.23

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Solution

The fourth proportional to 57,766.76, 86,653.01 and 18,320.23 is: 27,481.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,766.76 : 86,653.01 = 18,320.23 : x
  2. Step 2: Convert to fraction form
    57,766.76/86,653.01 = 18,320.23/x
  3. Step 3: Cross multiply
    57,766.76x = 86,653.01 × 18,320.23
  4. Step 4: Simplify right side
    57,766.76x = 1,587,503,073.39
  5. Step 5: Solve for x
    x = 1,587,503,073.39/57,766.76
  6. Step 6: Final answer
    x = 27,481.26

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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.