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Finding the Fourth Proportional to 8,937.87, 12,334.97 and 4,959.76

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Solution

The fourth proportional to 8,937.87, 12,334.97 and 4,959.76 is: 6,844.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.87 : 12,334.97 = 4,959.76 : x
  2. Step 2: Convert to fraction form
    8,937.87/12,334.97 = 4,959.76/x
  3. Step 3: Cross multiply
    8,937.87x = 12,334.97 × 4,959.76
  4. Step 4: Simplify right side
    8,937.87x = 61,178,404.33
  5. Step 5: Solve for x
    x = 61,178,404.33/8,937.87
  6. Step 6: Final answer
    x = 6,844.85

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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.