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Finding the Fourth Proportional to 64,385.68, 88,845.12 and 35,704.62

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Solution

The fourth proportional to 64,385.68, 88,845.12 and 35,704.62 is: 49,268.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,385.68 : 88,845.12 = 35,704.62 : x
  2. Step 2: Convert to fraction form
    64,385.68/88,845.12 = 35,704.62/x
  3. Step 3: Cross multiply
    64,385.68x = 88,845.12 × 35,704.62
  4. Step 4: Simplify right side
    64,385.68x = 3,172,181,248.45
  5. Step 5: Solve for x
    x = 3,172,181,248.45/64,385.68
  6. Step 6: Final answer
    x = 49,268.43

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1.5x scale

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.