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Finding the Fourth Proportional to 64,280.44, 88,708.86 and 35,985.96

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Solution

The fourth proportional to 64,280.44, 88,708.86 and 35,985.96 is: 49,661.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,280.44 : 88,708.86 = 35,985.96 : x
  2. Step 2: Convert to fraction form
    64,280.44/88,708.86 = 35,985.96/x
  3. Step 3: Cross multiply
    64,280.44x = 88,708.86 × 35,985.96
  4. Step 4: Simplify right side
    64,280.44x = 3,192,273,487.61
  5. Step 5: Solve for x
    x = 3,192,273,487.61/64,280.44
  6. Step 6: Final answer
    x = 49,661.66

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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.