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Finding the Fourth Proportional to 48,172.32, 66,456.72 and 36,974.88

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Solution

The fourth proportional to 48,172.32, 66,456.72 and 36,974.88 is: 51,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,172.32 : 66,456.72 = 36,974.88 : x
  2. Step 2: Convert to fraction form
    48,172.32/66,456.72 = 36,974.88/x
  3. Step 3: Cross multiply
    48,172.32x = 66,456.72 × 36,974.88
  4. Step 4: Simplify right side
    48,172.32x = 2,457,229,247.19
  5. Step 5: Solve for x
    x = 2,457,229,247.19/48,172.32
  6. Step 6: Final answer
    x = 51,009.15

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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.