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Finding the Fourth Proportional to 64,287.64, 88,712.96 and 35,606.85

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Solution

The fourth proportional to 64,287.64, 88,712.96 and 35,606.85 is: 49,135.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,287.64 : 88,712.96 = 35,606.85 : x
  2. Step 2: Convert to fraction form
    64,287.64/88,712.96 = 35,606.85/x
  3. Step 3: Cross multiply
    64,287.64x = 88,712.96 × 35,606.85
  4. Step 4: Simplify right side
    64,287.64x = 3,158,789,059.78
  5. Step 5: Solve for x
    x = 3,158,789,059.78/64,287.64
  6. Step 6: Final answer
    x = 49,135.25

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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.