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Finding the Fourth Proportional to 48,344.87, 66,724.44 and 30,445.49

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Solution

The fourth proportional to 48,344.87, 66,724.44 and 30,445.49 is: 42,020.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,344.87 : 66,724.44 = 30,445.49 : x
  2. Step 2: Convert to fraction form
    48,344.87/66,724.44 = 30,445.49/x
  3. Step 3: Cross multiply
    48,344.87x = 66,724.44 × 30,445.49
  4. Step 4: Simplify right side
    48,344.87x = 2,031,458,119.35
  5. Step 5: Solve for x
    x = 2,031,458,119.35/48,344.87
  6. Step 6: Final answer
    x = 42,020.14

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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.