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Finding the Fourth Proportional to 5,671.76, 8,507.64 and 4,375.12

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Solution

The fourth proportional to 5,671.76, 8,507.64 and 4,375.12 is: 6,562.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.76 : 8,507.64 = 4,375.12 : x
  2. Step 2: Convert to fraction form
    5,671.76/8,507.64 = 4,375.12/x
  3. Step 3: Cross multiply
    5,671.76x = 8,507.64 × 4,375.12
  4. Step 4: Simplify right side
    5,671.76x = 37,221,945.92
  5. Step 5: Solve for x
    x = 37,221,945.92/5,671.76
  6. Step 6: Final answer
    x = 6,562.68

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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.