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Finding the Fourth Proportional to 64,432.98, 96,651.90 and 20,063.61

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Solution

The fourth proportional to 64,432.98, 96,651.90 and 20,063.61 is: 30,096.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,432.98 : 96,651.90 = 20,063.61 : x
  2. Step 2: Convert to fraction form
    64,432.98/96,651.90 = 20,063.61/x
  3. Step 3: Cross multiply
    64,432.98x = 96,651.90 × 20,063.61
  4. Step 4: Simplify right side
    64,432.98x = 1,939,186,027.36
  5. Step 5: Solve for x
    x = 1,939,186,027.36/64,432.98
  6. Step 6: Final answer
    x = 30,096.17

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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.