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Finding the Fourth Proportional to 64,067.81, 88,405.99 and 35,385.77

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Solution

The fourth proportional to 64,067.81, 88,405.99 and 35,385.77 is: 48,828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,067.81 : 88,405.99 = 35,385.77 : x
  2. Step 2: Convert to fraction form
    64,067.81/88,405.99 = 35,385.77/x
  3. Step 3: Cross multiply
    64,067.81x = 88,405.99 × 35,385.77
  4. Step 4: Simplify right side
    64,067.81x = 3,128,313,498.27
  5. Step 5: Solve for x
    x = 3,128,313,498.27/64,067.81
  6. Step 6: Final answer
    x = 48,828.17

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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.