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Finding the Fourth Proportional to 67,095.96, 100,637.46 and 20,349.24

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Solution

The fourth proportional to 67,095.96, 100,637.46 and 20,349.24 is: 30,521.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,095.96 : 100,637.46 = 20,349.24 : x
  2. Step 2: Convert to fraction form
    67,095.96/100,637.46 = 20,349.24/x
  3. Step 3: Cross multiply
    67,095.96x = 100,637.46 × 20,349.24
  4. Step 4: Simplify right side
    67,095.96x = 2,047,895,826.53
  5. Step 5: Solve for x
    x = 2,047,895,826.53/67,095.96
  6. Step 6: Final answer
    x = 30,521.89

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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.