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Finding the Fourth Proportional to 8,961.93, 12,367.08 and 5,184.90

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Solution

The fourth proportional to 8,961.93, 12,367.08 and 5,184.90 is: 7,154.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.93 : 12,367.08 = 5,184.90 : x
  2. Step 2: Convert to fraction form
    8,961.93/12,367.08 = 5,184.90/x
  3. Step 3: Cross multiply
    8,961.93x = 12,367.08 × 5,184.90
  4. Step 4: Simplify right side
    8,961.93x = 64,122,073.09
  5. Step 5: Solve for x
    x = 64,122,073.09/8,961.93
  6. Step 6: Final answer
    x = 7,154.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.