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Finding the Fourth Proportional to 63,663.92, 87,859.32 and 35,369

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Solution

The fourth proportional to 63,663.92, 87,859.32 and 35,369 is: 48,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,663.92 : 87,859.32 = 35,369 : x
  2. Step 2: Convert to fraction form
    63,663.92/87,859.32 = 35,369/x
  3. Step 3: Cross multiply
    63,663.92x = 87,859.32 × 35,369
  4. Step 4: Simplify right side
    63,663.92x = 3,107,496,289.08
  5. Step 5: Solve for x
    x = 3,107,496,289.08/63,663.92
  6. Step 6: Final answer
    x = 48,810.95

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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.