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Finding the Fourth Proportional to 63,102.72, 87,081.76 and 34,808.48

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Solution

The fourth proportional to 63,102.72, 87,081.76 and 34,808.48 is: 48,035.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,102.72 : 87,081.76 = 34,808.48 : x
  2. Step 2: Convert to fraction form
    63,102.72/87,081.76 = 34,808.48/x
  3. Step 3: Cross multiply
    63,102.72x = 87,081.76 × 34,808.48
  4. Step 4: Simplify right side
    63,102.72x = 3,031,183,701.32
  5. Step 5: Solve for x
    x = 3,031,183,701.32/63,102.72
  6. Step 6: Final answer
    x = 48,035.71

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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.