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Finding the Fourth Proportional to 64,381.88, 88,772.28 and 60,396.68

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Solution

The fourth proportional to 64,381.88, 88,772.28 and 60,396.68 is: 83,277.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,381.88 : 88,772.28 = 60,396.68 : x
  2. Step 2: Convert to fraction form
    64,381.88/88,772.28 = 60,396.68/x
  3. Step 3: Cross multiply
    64,381.88x = 88,772.28 × 60,396.68
  4. Step 4: Simplify right side
    64,381.88x = 5,361,550,988.03
  5. Step 5: Solve for x
    x = 5,361,550,988.03/64,381.88
  6. Step 6: Final answer
    x = 83,277.33

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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.