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Finding the Fourth Proportional to 91,995.71, 137,994.08 and 27,954.48

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Solution

The fourth proportional to 91,995.71, 137,994.08 and 27,954.48 is: 41,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,995.71 : 137,994.08 = 27,954.48 : x
  2. Step 2: Convert to fraction form
    91,995.71/137,994.08 = 27,954.48/x
  3. Step 3: Cross multiply
    91,995.71x = 137,994.08 × 27,954.48
  4. Step 4: Simplify right side
    91,995.71x = 3,857,552,749.48
  5. Step 5: Solve for x
    x = 3,857,552,749.48/91,995.71
  6. Step 6: Final answer
    x = 41,931.88

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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.