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Finding the Fourth Proportional to 48,709.81, 67,221.45 and 27,489.82

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Solution

The fourth proportional to 48,709.81, 67,221.45 and 27,489.82 is: 37,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,709.81 : 67,221.45 = 27,489.82 : x
  2. Step 2: Convert to fraction form
    48,709.81/67,221.45 = 27,489.82/x
  3. Step 3: Cross multiply
    48,709.81x = 67,221.45 × 27,489.82
  4. Step 4: Simplify right side
    48,709.81x = 1,847,905,560.64
  5. Step 5: Solve for x
    x = 1,847,905,560.64/48,709.81
  6. Step 6: Final answer
    x = 37,937.03

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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.