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Finding the Fourth Proportional to 3,163.52, 4,708.92 and 3,116.74

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Solution

The fourth proportional to 3,163.52, 4,708.92 and 3,116.74 is: 4,639.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.52 : 4,708.92 = 3,116.74 : x
  2. Step 2: Convert to fraction form
    3,163.52/4,708.92 = 3,116.74/x
  3. Step 3: Cross multiply
    3,163.52x = 4,708.92 × 3,116.74
  4. Step 4: Simplify right side
    3,163.52x = 14,676,479.32
  5. Step 5: Solve for x
    x = 14,676,479.32/3,163.52
  6. Step 6: Final answer
    x = 4,639.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.