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Finding the Fourth Proportional to 80,964.41, 121,460.45 and 27,653.45

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Solution

The fourth proportional to 80,964.41, 121,460.45 and 27,653.45 is: 41,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,964.41 : 121,460.45 = 27,653.45 : x
  2. Step 2: Convert to fraction form
    80,964.41/121,460.45 = 27,653.45/x
  3. Step 3: Cross multiply
    80,964.41x = 121,460.45 × 27,653.45
  4. Step 4: Simplify right side
    80,964.41x = 3,358,800,418.70
  5. Step 5: Solve for x
    x = 3,358,800,418.70/80,964.41
  6. Step 6: Final answer
    x = 41,484.90

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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.