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Finding the Fourth Proportional to 2,653.62, 3,659.45 and 1,756.95

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Solution

The fourth proportional to 2,653.62, 3,659.45 and 1,756.95 is: 2,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.62 : 3,659.45 = 1,756.95 : x
  2. Step 2: Convert to fraction form
    2,653.62/3,659.45 = 1,756.95/x
  3. Step 3: Cross multiply
    2,653.62x = 3,659.45 × 1,756.95
  4. Step 4: Simplify right side
    2,653.62x = 6,429,470.68
  5. Step 5: Solve for x
    x = 6,429,470.68/2,653.62
  6. Step 6: Final answer
    x = 2,422.91

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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.