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Finding the Fourth Proportional to 32,636.78, 48,939.86 and 19,132.04

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Solution

The fourth proportional to 32,636.78, 48,939.86 and 19,132.04 is: 28,689.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,636.78 : 48,939.86 = 19,132.04 : x
  2. Step 2: Convert to fraction form
    32,636.78/48,939.86 = 19,132.04/x
  3. Step 3: Cross multiply
    32,636.78x = 48,939.86 × 19,132.04
  4. Step 4: Simplify right side
    32,636.78x = 936,319,359.11
  5. Step 5: Solve for x
    x = 936,319,359.11/32,636.78
  6. Step 6: Final answer
    x = 28,689.09

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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.