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Finding the Fourth Proportional to 57,764.40, 86,581.80 and 29,673.60

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Solution

The fourth proportional to 57,764.40, 86,581.80 and 29,673.60 is: 44,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,764.40 : 86,581.80 = 29,673.60 : x
  2. Step 2: Convert to fraction form
    57,764.40/86,581.80 = 29,673.60/x
  3. Step 3: Cross multiply
    57,764.40x = 86,581.80 × 29,673.60
  4. Step 4: Simplify right side
    57,764.40x = 2,569,193,700.48
  5. Step 5: Solve for x
    x = 2,569,193,700.48/57,764.40
  6. Step 6: Final answer
    x = 44,477.11

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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.