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Finding the Fourth Proportional to 8,693.47, 12,006.84 and 5,855.92

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Solution

The fourth proportional to 8,693.47, 12,006.84 and 5,855.92 is: 8,087.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.47 : 12,006.84 = 5,855.92 : x
  2. Step 2: Convert to fraction form
    8,693.47/12,006.84 = 5,855.92/x
  3. Step 3: Cross multiply
    8,693.47x = 12,006.84 × 5,855.92
  4. Step 4: Simplify right side
    8,693.47x = 70,311,094.49
  5. Step 5: Solve for x
    x = 70,311,094.49/8,693.47
  6. Step 6: Final answer
    x = 8,087.81

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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.