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Finding the Fourth Proportional to 17,103.98, 25,639.97 and 8,765.55

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Solution

The fourth proportional to 17,103.98, 25,639.97 and 8,765.55 is: 13,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.98 : 25,639.97 = 8,765.55 : x
  2. Step 2: Convert to fraction form
    17,103.98/25,639.97 = 8,765.55/x
  3. Step 3: Cross multiply
    17,103.98x = 25,639.97 × 8,765.55
  4. Step 4: Simplify right side
    17,103.98x = 224,748,395.21
  5. Step 5: Solve for x
    x = 224,748,395.21/17,103.98
  6. Step 6: Final answer
    x = 13,140.12

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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.