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Finding the Fourth Proportional to 48,832.80, 73,162.80 and 45,722.40

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Solution

The fourth proportional to 48,832.80, 73,162.80 and 45,722.40 is: 68,502.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,832.80 : 73,162.80 = 45,722.40 : x
  2. Step 2: Convert to fraction form
    48,832.80/73,162.80 = 45,722.40/x
  3. Step 3: Cross multiply
    48,832.80x = 73,162.80 × 45,722.40
  4. Step 4: Simplify right side
    48,832.80x = 3,345,178,806.72
  5. Step 5: Solve for x
    x = 3,345,178,806.72/48,832.80
  6. Step 6: Final answer
    x = 68,502.70

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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.