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Finding the Fourth Proportional to 21,916.69, 32,851.46 and 9,442.59

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Solution

The fourth proportional to 21,916.69, 32,851.46 and 9,442.59 is: 14,153.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.69 : 32,851.46 = 9,442.59 : x
  2. Step 2: Convert to fraction form
    21,916.69/32,851.46 = 9,442.59/x
  3. Step 3: Cross multiply
    21,916.69x = 32,851.46 × 9,442.59
  4. Step 4: Simplify right side
    21,916.69x = 310,202,820.47
  5. Step 5: Solve for x
    x = 310,202,820.47/21,916.69
  6. Step 6: Final answer
    x = 14,153.73

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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.