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Finding the Fourth Proportional to 1,671.17, 2,504.58 and 793.13

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Solution

The fourth proportional to 1,671.17, 2,504.58 and 793.13 is: 1,188.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.17 : 2,504.58 = 793.13 : x
  2. Step 2: Convert to fraction form
    1,671.17/2,504.58 = 793.13/x
  3. Step 3: Cross multiply
    1,671.17x = 2,504.58 × 793.13
  4. Step 4: Simplify right side
    1,671.17x = 1,986,445.01
  5. Step 5: Solve for x
    x = 1,986,445.01/1,671.17
  6. Step 6: Final answer
    x = 1,188.66

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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.