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Finding the Fourth Proportional to 64,716.88, 89,294.48 and 36,412.24

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Solution

The fourth proportional to 64,716.88, 89,294.48 and 36,412.24 is: 50,240.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,716.88 : 89,294.48 = 36,412.24 : x
  2. Step 2: Convert to fraction form
    64,716.88/89,294.48 = 36,412.24/x
  3. Step 3: Cross multiply
    64,716.88x = 89,294.48 × 36,412.24
  4. Step 4: Simplify right side
    64,716.88x = 3,251,412,036.44
  5. Step 5: Solve for x
    x = 3,251,412,036.44/64,716.88
  6. Step 6: Final answer
    x = 50,240.56

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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.