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Finding the Fourth Proportional to 8,649.50, 11,913.01 and 7,468.52

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Solution

The fourth proportional to 8,649.50, 11,913.01 and 7,468.52 is: 10,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.50 : 11,913.01 = 7,468.52 : x
  2. Step 2: Convert to fraction form
    8,649.50/11,913.01 = 7,468.52/x
  3. Step 3: Cross multiply
    8,649.50x = 11,913.01 × 7,468.52
  4. Step 4: Simplify right side
    8,649.50x = 88,972,475.21
  5. Step 5: Solve for x
    x = 88,972,475.21/8,649.50
  6. Step 6: Final answer
    x = 10,286.44

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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.