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Finding the Fourth Proportional to 64,287.66, 88,715.98 and 35,994.36

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Solution

The fourth proportional to 64,287.66, 88,715.98 and 35,994.36 is: 49,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,287.66 : 88,715.98 = 35,994.36 : x
  2. Step 2: Convert to fraction form
    64,287.66/88,715.98 = 35,994.36/x
  3. Step 3: Cross multiply
    64,287.66x = 88,715.98 × 35,994.36
  4. Step 4: Simplify right side
    64,287.66x = 3,193,274,921.87
  5. Step 5: Solve for x
    x = 3,193,274,921.87/64,287.66
  6. Step 6: Final answer
    x = 49,671.66

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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.