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Finding the Fourth Proportional to 63,572.45, 87,730.49 and 35,278.61

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Solution

The fourth proportional to 63,572.45, 87,730.49 and 35,278.61 is: 48,684.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,572.45 : 87,730.49 = 35,278.61 : x
  2. Step 2: Convert to fraction form
    63,572.45/87,730.49 = 35,278.61/x
  3. Step 3: Cross multiply
    63,572.45x = 87,730.49 × 35,278.61
  4. Step 4: Simplify right side
    63,572.45x = 3,095,009,391.36
  5. Step 5: Solve for x
    x = 3,095,009,391.36/63,572.45
  6. Step 6: Final answer
    x = 48,684.76

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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.