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Finding the Fourth Proportional to 21,876.48, 32,792.04 and 19,951.92

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Solution

The fourth proportional to 21,876.48, 32,792.04 and 19,951.92 is: 29,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,876.48 : 32,792.04 = 19,951.92 : x
  2. Step 2: Convert to fraction form
    21,876.48/32,792.04 = 19,951.92/x
  3. Step 3: Cross multiply
    21,876.48x = 32,792.04 × 19,951.92
  4. Step 4: Simplify right side
    21,876.48x = 654,264,158.72
  5. Step 5: Solve for x
    x = 654,264,158.72/21,876.48
  6. Step 6: Final answer
    x = 29,907.20

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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.