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Finding the Fourth Proportional to 3,795.92, 5,240.92 and 2,910.16

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Solution

The fourth proportional to 3,795.92, 5,240.92 and 2,910.16 is: 4,017.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,795.92 : 5,240.92 = 2,910.16 : x
  2. Step 2: Convert to fraction form
    3,795.92/5,240.92 = 2,910.16/x
  3. Step 3: Cross multiply
    3,795.92x = 5,240.92 × 2,910.16
  4. Step 4: Simplify right side
    3,795.92x = 15,251,915.75
  5. Step 5: Solve for x
    x = 15,251,915.75/3,795.92
  6. Step 6: Final answer
    x = 4,017.98

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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.