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Finding the Fourth Proportional to 72,625.65, 100,232.76 and 40,794.54

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Solution

The fourth proportional to 72,625.65, 100,232.76 and 40,794.54 is: 56,301.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,625.65 : 100,232.76 = 40,794.54 : x
  2. Step 2: Convert to fraction form
    72,625.65/100,232.76 = 40,794.54/x
  3. Step 3: Cross multiply
    72,625.65x = 100,232.76 × 40,794.54
  4. Step 4: Simplify right side
    72,625.65x = 4,088,949,133.16
  5. Step 5: Solve for x
    x = 4,088,949,133.16/72,625.65
  6. Step 6: Final answer
    x = 56,301.72

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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.