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Finding the Fourth Proportional to 2,695.88, 3,720.15 and 1,633.91

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Solution

The fourth proportional to 2,695.88, 3,720.15 and 1,633.91 is: 2,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.88 : 3,720.15 = 1,633.91 : x
  2. Step 2: Convert to fraction form
    2,695.88/3,720.15 = 1,633.91/x
  3. Step 3: Cross multiply
    2,695.88x = 3,720.15 × 1,633.91
  4. Step 4: Simplify right side
    2,695.88x = 6,078,390.29
  5. Step 5: Solve for x
    x = 6,078,390.29/2,695.88
  6. Step 6: Final answer
    x = 2,254.70

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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.