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Finding the Fourth Proportional to 64,687.94, 96,851.28 and 34,999.28

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Solution

The fourth proportional to 64,687.94, 96,851.28 and 34,999.28 is: 52,401.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,687.94 : 96,851.28 = 34,999.28 : x
  2. Step 2: Convert to fraction form
    64,687.94/96,851.28 = 34,999.28/x
  3. Step 3: Cross multiply
    64,687.94x = 96,851.28 × 34,999.28
  4. Step 4: Simplify right side
    64,687.94x = 3,389,725,067.08
  5. Step 5: Solve for x
    x = 3,389,725,067.08/64,687.94
  6. Step 6: Final answer
    x = 52,401.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.