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Finding the Fourth Proportional to 3,033.92, 4,187.52 and 1,915.52

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Solution

The fourth proportional to 3,033.92, 4,187.52 and 1,915.52 is: 2,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,033.92 : 4,187.52 = 1,915.52 : x
  2. Step 2: Convert to fraction form
    3,033.92/4,187.52 = 1,915.52/x
  3. Step 3: Cross multiply
    3,033.92x = 4,187.52 × 1,915.52
  4. Step 4: Simplify right side
    3,033.92x = 8,021,278.31
  5. Step 5: Solve for x
    x = 8,021,278.31/3,033.92
  6. Step 6: Final answer
    x = 2,643.87

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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.