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Finding the Fourth Proportional to 8,863.95, 13,287.73 and 4,965.63

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Solution

The fourth proportional to 8,863.95, 13,287.73 and 4,965.63 is: 7,443.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.95 : 13,287.73 = 4,965.63 : x
  2. Step 2: Convert to fraction form
    8,863.95/13,287.73 = 4,965.63/x
  3. Step 3: Cross multiply
    8,863.95x = 13,287.73 × 4,965.63
  4. Step 4: Simplify right side
    8,863.95x = 65,981,950.72
  5. Step 5: Solve for x
    x = 65,981,950.72/8,863.95
  6. Step 6: Final answer
    x = 7,443.85

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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.