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Finding the Fourth Proportional to 8,884.76, 12,259.49 and 5,107.73

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Solution

The fourth proportional to 8,884.76, 12,259.49 and 5,107.73 is: 7,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,884.76 : 12,259.49 = 5,107.73 : x
  2. Step 2: Convert to fraction form
    8,884.76/12,259.49 = 5,107.73/x
  3. Step 3: Cross multiply
    8,884.76x = 12,259.49 × 5,107.73
  4. Step 4: Simplify right side
    8,884.76x = 62,618,078.02
  5. Step 5: Solve for x
    x = 62,618,078.02/8,884.76
  6. Step 6: Final answer
    x = 7,047.81

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Half scale
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Double scale
Find fourth proportional to 8,885.76, 12,260.86 and 5,108.73
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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.