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Finding the Fourth Proportional to 8,718.73, 13,073.98 and 3,168.16

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Solution

The fourth proportional to 8,718.73, 13,073.98 and 3,168.16 is: 4,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.73 : 13,073.98 = 3,168.16 : x
  2. Step 2: Convert to fraction form
    8,718.73/13,073.98 = 3,168.16/x
  3. Step 3: Cross multiply
    8,718.73x = 13,073.98 × 3,168.16
  4. Step 4: Simplify right side
    8,718.73x = 41,420,460.48
  5. Step 5: Solve for x
    x = 41,420,460.48/8,718.73
  6. Step 6: Final answer
    x = 4,750.74

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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.