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Finding the Fourth Proportional to 3,462.80, 5,189.31 and 1,510.92

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Solution

The fourth proportional to 3,462.80, 5,189.31 and 1,510.92 is: 2,264.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,462.80 : 5,189.31 = 1,510.92 : x
  2. Step 2: Convert to fraction form
    3,462.80/5,189.31 = 1,510.92/x
  3. Step 3: Cross multiply
    3,462.80x = 5,189.31 × 1,510.92
  4. Step 4: Simplify right side
    3,462.80x = 7,840,632.27
  5. Step 5: Solve for x
    x = 7,840,632.27/3,462.80
  6. Step 6: Final answer
    x = 2,264.25

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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.