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Finding the Fourth Proportional to 72,752.22, 100,424.52 and 45,912.24

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Solution

The fourth proportional to 72,752.22, 100,424.52 and 45,912.24 is: 63,375.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,752.22 : 100,424.52 = 45,912.24 : x
  2. Step 2: Convert to fraction form
    72,752.22/100,424.52 = 45,912.24/x
  3. Step 3: Cross multiply
    72,752.22x = 100,424.52 × 45,912.24
  4. Step 4: Simplify right side
    72,752.22x = 4,610,714,664.12
  5. Step 5: Solve for x
    x = 4,610,714,664.12/72,752.22
  6. Step 6: Final answer
    x = 63,375.59

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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.