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Finding the Fourth Proportional to 64,406.36, 88,876.86 and 36,111.44

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Solution

The fourth proportional to 64,406.36, 88,876.86 and 36,111.44 is: 49,831.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,406.36 : 88,876.86 = 36,111.44 : x
  2. Step 2: Convert to fraction form
    64,406.36/88,876.86 = 36,111.44/x
  3. Step 3: Cross multiply
    64,406.36x = 88,876.86 × 36,111.44
  4. Step 4: Simplify right side
    64,406.36x = 3,209,471,397.28
  5. Step 5: Solve for x
    x = 3,209,471,397.28/64,406.36
  6. Step 6: Final answer
    x = 49,831.59

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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.