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Finding the Fourth Proportional to 8,896.98, 12,276.58 and 5,118.71

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Solution

The fourth proportional to 8,896.98, 12,276.58 and 5,118.71 is: 7,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,896.98 : 12,276.58 = 5,118.71 : x
  2. Step 2: Convert to fraction form
    8,896.98/12,276.58 = 5,118.71/x
  3. Step 3: Cross multiply
    8,896.98x = 12,276.58 × 5,118.71
  4. Step 4: Simplify right side
    8,896.98x = 62,840,252.81
  5. Step 5: Solve for x
    x = 62,840,252.81/8,896.98
  6. Step 6: Final answer
    x = 7,063.10

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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.