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Finding the Fourth Proportional to 8,253.45, 12,373.70 and 5,648.49

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Solution

The fourth proportional to 8,253.45, 12,373.70 and 5,648.49 is: 8,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.45 : 12,373.70 = 5,648.49 : x
  2. Step 2: Convert to fraction form
    8,253.45/12,373.70 = 5,648.49/x
  3. Step 3: Cross multiply
    8,253.45x = 12,373.70 × 5,648.49
  4. Step 4: Simplify right side
    8,253.45x = 69,892,692.47
  5. Step 5: Solve for x
    x = 69,892,692.47/8,253.45
  6. Step 6: Final answer
    x = 8,468.30

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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.