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Finding the Fourth Proportional to 8,765.68, 13,153.72 and 3,503.17

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Solution

The fourth proportional to 8,765.68, 13,153.72 and 3,503.17 is: 5,256.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.68 : 13,153.72 = 3,503.17 : x
  2. Step 2: Convert to fraction form
    8,765.68/13,153.72 = 3,503.17/x
  3. Step 3: Cross multiply
    8,765.68x = 13,153.72 × 3,503.17
  4. Step 4: Simplify right side
    8,765.68x = 46,079,717.29
  5. Step 5: Solve for x
    x = 46,079,717.29/8,765.68
  6. Step 6: Final answer
    x = 5,256.83

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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.