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Finding the Fourth Proportional to 8,352.97, 12,529.45 and 3,422.62

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Solution

The fourth proportional to 8,352.97, 12,529.45 and 3,422.62 is: 5,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.97 : 12,529.45 = 3,422.62 : x
  2. Step 2: Convert to fraction form
    8,352.97/12,529.45 = 3,422.62/x
  3. Step 3: Cross multiply
    8,352.97x = 12,529.45 × 3,422.62
  4. Step 4: Simplify right side
    8,352.97x = 42,883,546.16
  5. Step 5: Solve for x
    x = 42,883,546.16/8,352.97
  6. Step 6: Final answer
    x = 5,133.93

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Half scale
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Double scale
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Similar ratio
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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.