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Finding the Fourth Proportional to 21,899.88, 32,851.08 and 14,876.88

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Solution

The fourth proportional to 21,899.88, 32,851.08 and 14,876.88 is: 22,316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899.88 : 32,851.08 = 14,876.88 : x
  2. Step 2: Convert to fraction form
    21,899.88/32,851.08 = 14,876.88/x
  3. Step 3: Cross multiply
    21,899.88x = 32,851.08 × 14,876.88
  4. Step 4: Simplify right side
    21,899.88x = 488,721,575.03
  5. Step 5: Solve for x
    x = 488,721,575.03/21,899.88
  6. Step 6: Final answer
    x = 22,316.18

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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.