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Finding the Fourth Proportional to 5,342.76, 7,372.50 and 3,103.92

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Solution

The fourth proportional to 5,342.76, 7,372.50 and 3,103.92 is: 4,283.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,342.76 : 7,372.50 = 3,103.92 : x
  2. Step 2: Convert to fraction form
    5,342.76/7,372.50 = 3,103.92/x
  3. Step 3: Cross multiply
    5,342.76x = 7,372.50 × 3,103.92
  4. Step 4: Simplify right side
    5,342.76x = 22,883,650.20
  5. Step 5: Solve for x
    x = 22,883,650.20/5,342.76
  6. Step 6: Final answer
    x = 4,283.11

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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.