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Finding the Fourth Proportional to 69,990.68, 105,006.68 and 22,613.28

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Solution

The fourth proportional to 69,990.68, 105,006.68 and 22,613.28 is: 33,926.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,990.68 : 105,006.68 = 22,613.28 : x
  2. Step 2: Convert to fraction form
    69,990.68/105,006.68 = 22,613.28/x
  3. Step 3: Cross multiply
    69,990.68x = 105,006.68 × 22,613.28
  4. Step 4: Simplify right side
    69,990.68x = 2,374,545,034.67
  5. Step 5: Solve for x
    x = 2,374,545,034.67/69,990.68
  6. Step 6: Final answer
    x = 33,926.59

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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.