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Finding the Fourth Proportional to 63,678.76, 87,876.68 and 35,384.44

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Solution

The fourth proportional to 63,678.76, 87,876.68 and 35,384.44 is: 48,830.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,678.76 : 87,876.68 = 35,384.44 : x
  2. Step 2: Convert to fraction form
    63,678.76/87,876.68 = 35,384.44/x
  3. Step 3: Cross multiply
    63,678.76x = 87,876.68 × 35,384.44
  4. Step 4: Simplify right side
    63,678.76x = 3,109,467,110.86
  5. Step 5: Solve for x
    x = 3,109,467,110.86/63,678.76
  6. Step 6: Final answer
    x = 48,830.52

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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.