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Finding the Fourth Proportional to 3,344.97, 5,017.50 and 879.63

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Solution

The fourth proportional to 3,344.97, 5,017.50 and 879.63 is: 1,319.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,344.97 : 5,017.50 = 879.63 : x
  2. Step 2: Convert to fraction form
    3,344.97/5,017.50 = 879.63/x
  3. Step 3: Cross multiply
    3,344.97x = 5,017.50 × 879.63
  4. Step 4: Simplify right side
    3,344.97x = 4,413,543.53
  5. Step 5: Solve for x
    x = 4,413,543.53/3,344.97
  6. Step 6: Final answer
    x = 1,319.46

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1.5x scale

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.