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Finding the Fourth Proportional to 64,283.76, 88,710.72 and 35,989.44

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Solution

The fourth proportional to 64,283.76, 88,710.72 and 35,989.44 is: 49,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,283.76 : 88,710.72 = 35,989.44 : x
  2. Step 2: Convert to fraction form
    64,283.76/88,710.72 = 35,989.44/x
  3. Step 3: Cross multiply
    64,283.76x = 88,710.72 × 35,989.44
  4. Step 4: Simplify right side
    64,283.76x = 3,192,649,134.80
  5. Step 5: Solve for x
    x = 3,192,649,134.80/64,283.76
  6. Step 6: Final answer
    x = 49,664.94

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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.