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Finding the Fourth Proportional to 57,491.78, 79,339.87 and 32,341.28

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Solution

The fourth proportional to 57,491.78, 79,339.87 and 32,341.28 is: 44,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,491.78 : 79,339.87 = 32,341.28 : x
  2. Step 2: Convert to fraction form
    57,491.78/79,339.87 = 32,341.28/x
  3. Step 3: Cross multiply
    57,491.78x = 79,339.87 × 32,341.28
  4. Step 4: Simplify right side
    57,491.78x = 2,565,952,950.83
  5. Step 5: Solve for x
    x = 2,565,952,950.83/57,491.78
  6. Step 6: Final answer
    x = 44,631.65

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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.