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Finding the Fourth Proportional to 64,320.22, 88,764.63 and 37,458.40

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Solution

The fourth proportional to 64,320.22, 88,764.63 and 37,458.40 is: 51,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,320.22 : 88,764.63 = 37,458.40 : x
  2. Step 2: Convert to fraction form
    64,320.22/88,764.63 = 37,458.40/x
  3. Step 3: Cross multiply
    64,320.22x = 88,764.63 × 37,458.40
  4. Step 4: Simplify right side
    64,320.22x = 3,324,981,016.39
  5. Step 5: Solve for x
    x = 3,324,981,016.39/64,320.22
  6. Step 6: Final answer
    x = 51,694.18

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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.