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Finding the Fourth Proportional to 3,360.96, 5,040.18 and 1,510.79

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Solution

The fourth proportional to 3,360.96, 5,040.18 and 1,510.79 is: 2,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.96 : 5,040.18 = 1,510.79 : x
  2. Step 2: Convert to fraction form
    3,360.96/5,040.18 = 1,510.79/x
  3. Step 3: Cross multiply
    3,360.96x = 5,040.18 × 1,510.79
  4. Step 4: Simplify right side
    3,360.96x = 7,614,628.34
  5. Step 5: Solve for x
    x = 7,614,628.34/3,360.96
  6. Step 6: Final answer
    x = 2,265.61

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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.