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Finding the Fourth Proportional to 2,479.51, 3,715.50 and 1,696.75

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Solution

The fourth proportional to 2,479.51, 3,715.50 and 1,696.75 is: 2,542.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.51 : 3,715.50 = 1,696.75 : x
  2. Step 2: Convert to fraction form
    2,479.51/3,715.50 = 1,696.75/x
  3. Step 3: Cross multiply
    2,479.51x = 3,715.50 × 1,696.75
  4. Step 4: Simplify right side
    2,479.51x = 6,304,274.63
  5. Step 5: Solve for x
    x = 6,304,274.63/2,479.51
  6. Step 6: Final answer
    x = 2,542.55

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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.