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Finding the Fourth Proportional to 57,479.90, 79,321.50 and 32,329.40

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Solution

The fourth proportional to 57,479.90, 79,321.50 and 32,329.40 is: 44,614.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,479.90 : 79,321.50 = 32,329.40 : x
  2. Step 2: Convert to fraction form
    57,479.90/79,321.50 = 32,329.40/x
  3. Step 3: Cross multiply
    57,479.90x = 79,321.50 × 32,329.40
  4. Step 4: Simplify right side
    57,479.90x = 2,564,416,502.10
  5. Step 5: Solve for x
    x = 2,564,416,502.10/57,479.90
  6. Step 6: Final answer
    x = 44,614.14

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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.