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Finding the Fourth Proportional to 62,407.69, 93,611.53 and 20,854.69

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Solution

The fourth proportional to 62,407.69, 93,611.53 and 20,854.69 is: 31,282.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,407.69 : 93,611.53 = 20,854.69 : x
  2. Step 2: Convert to fraction form
    62,407.69/93,611.53 = 20,854.69/x
  3. Step 3: Cross multiply
    62,407.69x = 93,611.53 × 20,854.69
  4. Step 4: Simplify right side
    62,407.69x = 1,952,239,230.62
  5. Step 5: Solve for x
    x = 1,952,239,230.62/62,407.69
  6. Step 6: Final answer
    x = 31,282.03

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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.