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Finding the Fourth Proportional to 60,965.76, 91,440.56 and 27,678.17

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Solution

The fourth proportional to 60,965.76, 91,440.56 and 27,678.17 is: 41,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,965.76 : 91,440.56 = 27,678.17 : x
  2. Step 2: Convert to fraction form
    60,965.76/91,440.56 = 27,678.17/x
  3. Step 3: Cross multiply
    60,965.76x = 91,440.56 × 27,678.17
  4. Step 4: Simplify right side
    60,965.76x = 2,530,907,001.88
  5. Step 5: Solve for x
    x = 2,530,907,001.88/60,965.76
  6. Step 6: Final answer
    x = 41,513.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.