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Finding the Fourth Proportional to 63,696.68, 87,899.28 and 35,401.76

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Solution

The fourth proportional to 63,696.68, 87,899.28 and 35,401.76 is: 48,853.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,696.68 : 87,899.28 = 35,401.76 : x
  2. Step 2: Convert to fraction form
    63,696.68/87,899.28 = 35,401.76/x
  3. Step 3: Cross multiply
    63,696.68x = 87,899.28 × 35,401.76
  4. Step 4: Simplify right side
    63,696.68x = 3,111,789,214.73
  5. Step 5: Solve for x
    x = 3,111,789,214.73/63,696.68
  6. Step 6: Final answer
    x = 48,853.24

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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.