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Finding the Fourth Proportional to 57,480, 79,321.62 and 32,329.56

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Solution

The fourth proportional to 57,480, 79,321.62 and 32,329.56 is: 44,614.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,480 : 79,321.62 = 32,329.56 : x
  2. Step 2: Convert to fraction form
    57,480/79,321.62 = 32,329.56/x
  3. Step 3: Cross multiply
    57,480x = 79,321.62 × 32,329.56
  4. Step 4: Simplify right side
    57,480x = 2,564,433,073.09
  5. Step 5: Solve for x
    x = 2,564,433,073.09/57,480
  6. Step 6: Final answer
    x = 44,614.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.