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Finding the Fourth Proportional to 5,750.31, 7,935.15 and 3,515.92

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Solution

The fourth proportional to 5,750.31, 7,935.15 and 3,515.92 is: 4,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,750.31 : 7,935.15 = 3,515.92 : x
  2. Step 2: Convert to fraction form
    5,750.31/7,935.15 = 3,515.92/x
  3. Step 3: Cross multiply
    5,750.31x = 7,935.15 × 3,515.92
  4. Step 4: Simplify right side
    5,750.31x = 27,899,352.59
  5. Step 5: Solve for x
    x = 27,899,352.59/5,750.31
  6. Step 6: Final answer
    x = 4,851.80

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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.