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Finding the Fourth Proportional to 9,113.96, 13,671.96 and 2,874.85

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Solution

The fourth proportional to 9,113.96, 13,671.96 and 2,874.85 is: 4,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113.96 : 13,671.96 = 2,874.85 : x
  2. Step 2: Convert to fraction form
    9,113.96/13,671.96 = 2,874.85/x
  3. Step 3: Cross multiply
    9,113.96x = 13,671.96 × 2,874.85
  4. Step 4: Simplify right side
    9,113.96x = 39,304,834.21
  5. Step 5: Solve for x
    x = 39,304,834.21/9,113.96
  6. Step 6: Final answer
    x = 4,312.60

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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.