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Finding the Fourth Proportional to 21,988.50, 32,862.03 and 16,077.83

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Solution

The fourth proportional to 21,988.50, 32,862.03 and 16,077.83 is: 24,028.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.50 : 32,862.03 = 16,077.83 : x
  2. Step 2: Convert to fraction form
    21,988.50/32,862.03 = 16,077.83/x
  3. Step 3: Cross multiply
    21,988.50x = 32,862.03 × 16,077.83
  4. Step 4: Simplify right side
    21,988.50x = 528,350,131.79
  5. Step 5: Solve for x
    x = 528,350,131.79/21,988.50
  6. Step 6: Final answer
    x = 24,028.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.