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Finding the Fourth Proportional to 64,489.56, 88,994.33 and 35,807.74

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Solution

The fourth proportional to 64,489.56, 88,994.33 and 35,807.74 is: 49,413.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,489.56 : 88,994.33 = 35,807.74 : x
  2. Step 2: Convert to fraction form
    64,489.56/88,994.33 = 35,807.74/x
  3. Step 3: Cross multiply
    64,489.56x = 88,994.33 × 35,807.74
  4. Step 4: Simplify right side
    64,489.56x = 3,186,685,206.10
  5. Step 5: Solve for x
    x = 3,186,685,206.10/64,489.56
  6. Step 6: Final answer
    x = 49,413.97

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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.