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Finding the Fourth Proportional to 16,672.53, 25,010.16 and 4,985.58

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Solution

The fourth proportional to 16,672.53, 25,010.16 and 4,985.58 is: 7,478.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,672.53 : 25,010.16 = 4,985.58 : x
  2. Step 2: Convert to fraction form
    16,672.53/25,010.16 = 4,985.58/x
  3. Step 3: Cross multiply
    16,672.53x = 25,010.16 × 4,985.58
  4. Step 4: Simplify right side
    16,672.53x = 124,690,153.49
  5. Step 5: Solve for x
    x = 124,690,153.49/16,672.53
  6. Step 6: Final answer
    x = 7,478.78

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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.