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Finding the Fourth Proportional to 48,988.82, 67,609.86 and 27,765.80

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Solution

The fourth proportional to 48,988.82, 67,609.86 and 27,765.80 is: 38,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,988.82 : 67,609.86 = 27,765.80 : x
  2. Step 2: Convert to fraction form
    48,988.82/67,609.86 = 27,765.80/x
  3. Step 3: Cross multiply
    48,988.82x = 67,609.86 × 27,765.80
  4. Step 4: Simplify right side
    48,988.82x = 1,877,241,850.79
  5. Step 5: Solve for x
    x = 1,877,241,850.79/48,988.82
  6. Step 6: Final answer
    x = 38,319.80

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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.