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Finding the Fourth Proportional to 64,494.45, 88,999.35 and 35,815.93

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Solution

The fourth proportional to 64,494.45, 88,999.35 and 35,815.93 is: 49,424.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,494.45 : 88,999.35 = 35,815.93 : x
  2. Step 2: Convert to fraction form
    64,494.45/88,999.35 = 35,815.93/x
  3. Step 3: Cross multiply
    64,494.45x = 88,999.35 × 35,815.93
  4. Step 4: Simplify right side
    64,494.45x = 3,187,594,934.90
  5. Step 5: Solve for x
    x = 3,187,594,934.90/64,494.45
  6. Step 6: Final answer
    x = 49,424.33

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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.