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Finding the Fourth Proportional to 63,697.84, 87,906 and 35,404

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Solution

The fourth proportional to 63,697.84, 87,906 and 35,404 is: 48,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,697.84 : 87,906 = 35,404 : x
  2. Step 2: Convert to fraction form
    63,697.84/87,906 = 35,404/x
  3. Step 3: Cross multiply
    63,697.84x = 87,906 × 35,404
  4. Step 4: Simplify right side
    63,697.84x = 3,112,224,024
  5. Step 5: Solve for x
    x = 3,112,224,024/63,697.84
  6. Step 6: Final answer
    x = 48,859.18

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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.