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Finding the Fourth Proportional to 64,532.66, 96,812.66 and 20,162.76

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Solution

The fourth proportional to 64,532.66, 96,812.66 and 20,162.76 is: 30,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,532.66 : 96,812.66 = 20,162.76 : x
  2. Step 2: Convert to fraction form
    64,532.66/96,812.66 = 20,162.76/x
  3. Step 3: Cross multiply
    64,532.66x = 96,812.66 × 20,162.76
  4. Step 4: Simplify right side
    64,532.66x = 1,952,010,428.54
  5. Step 5: Solve for x
    x = 1,952,010,428.54/64,532.66
  6. Step 6: Final answer
    x = 30,248.41

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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.