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Finding the Fourth Proportional to 4,668.24, 6,995.76 and 2,478

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Solution

The fourth proportional to 4,668.24, 6,995.76 and 2,478 is: 3,713.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,668.24 : 6,995.76 = 2,478 : x
  2. Step 2: Convert to fraction form
    4,668.24/6,995.76 = 2,478/x
  3. Step 3: Cross multiply
    4,668.24x = 6,995.76 × 2,478
  4. Step 4: Simplify right side
    4,668.24x = 17,335,493.28
  5. Step 5: Solve for x
    x = 17,335,493.28/4,668.24
  6. Step 6: Final answer
    x = 3,713.50

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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.