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Finding the Fourth Proportional to 2,695.80, 3,720.24 and 1,516.92

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Solution

The fourth proportional to 2,695.80, 3,720.24 and 1,516.92 is: 2,093.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.80 : 3,720.24 = 1,516.92 : x
  2. Step 2: Convert to fraction form
    2,695.80/3,720.24 = 1,516.92/x
  3. Step 3: Cross multiply
    2,695.80x = 3,720.24 × 1,516.92
  4. Step 4: Simplify right side
    2,695.80x = 5,643,306.46
  5. Step 5: Solve for x
    x = 5,643,306.46/2,695.80
  6. Step 6: Final answer
    x = 2,093.37

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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.