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Finding the Fourth Proportional to 48,398.70, 66,791 and 27,177.50

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Solution

The fourth proportional to 48,398.70, 66,791 and 27,177.50 is: 37,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,398.70 : 66,791 = 27,177.50 : x
  2. Step 2: Convert to fraction form
    48,398.70/66,791 = 27,177.50/x
  3. Step 3: Cross multiply
    48,398.70x = 66,791 × 27,177.50
  4. Step 4: Simplify right side
    48,398.70x = 1,815,212,402.50
  5. Step 5: Solve for x
    x = 1,815,212,402.50/48,398.70
  6. Step 6: Final answer
    x = 37,505.40

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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.