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Finding the Fourth Proportional to 57,492.90, 79,340.07 and 32,342.40

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Solution

The fourth proportional to 57,492.90, 79,340.07 and 32,342.40 is: 44,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,492.90 : 79,340.07 = 32,342.40 : x
  2. Step 2: Convert to fraction form
    57,492.90/79,340.07 = 32,342.40/x
  3. Step 3: Cross multiply
    57,492.90x = 79,340.07 × 32,342.40
  4. Step 4: Simplify right side
    57,492.90x = 2,566,048,279.97
  5. Step 5: Solve for x
    x = 2,566,048,279.97/57,492.90
  6. Step 6: Final answer
    x = 44,632.44

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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.