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Finding the Fourth Proportional to 48,016.70, 72,003.45 and 18,424.70

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Solution

The fourth proportional to 48,016.70, 72,003.45 and 18,424.70 is: 27,628.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,016.70 : 72,003.45 = 18,424.70 : x
  2. Step 2: Convert to fraction form
    48,016.70/72,003.45 = 18,424.70/x
  3. Step 3: Cross multiply
    48,016.70x = 72,003.45 × 18,424.70
  4. Step 4: Simplify right side
    48,016.70x = 1,326,641,965.22
  5. Step 5: Solve for x
    x = 1,326,641,965.22/48,016.70
  6. Step 6: Final answer
    x = 27,628.76

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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.