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Finding the Fourth Proportional to 32,750.32, 49,135.86 and 11,689.90

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Solution

The fourth proportional to 32,750.32, 49,135.86 and 11,689.90 is: 17,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,750.32 : 49,135.86 = 11,689.90 : x
  2. Step 2: Convert to fraction form
    32,750.32/49,135.86 = 11,689.90/x
  3. Step 3: Cross multiply
    32,750.32x = 49,135.86 × 11,689.90
  4. Step 4: Simplify right side
    32,750.32x = 574,393,044.13
  5. Step 5: Solve for x
    x = 574,393,044.13/32,750.32
  6. Step 6: Final answer
    x = 17,538.55

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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.