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Finding the Fourth Proportional to 8,863.16, 12,248.79 and 7,267.33

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Solution

The fourth proportional to 8,863.16, 12,248.79 and 7,267.33 is: 10,043.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.16 : 12,248.79 = 7,267.33 : x
  2. Step 2: Convert to fraction form
    8,863.16/12,248.79 = 7,267.33/x
  3. Step 3: Cross multiply
    8,863.16x = 12,248.79 × 7,267.33
  4. Step 4: Simplify right side
    8,863.16x = 89,016,065.63
  5. Step 5: Solve for x
    x = 89,016,065.63/8,863.16
  6. Step 6: Final answer
    x = 10,043.38

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Half scale
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Find fourth proportional to 8,864.16, 12,250.18 and 7,268.33
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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.