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Finding the Fourth Proportional to 22,613.68, 33,755.79 and 20,946.09

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Solution

The fourth proportional to 22,613.68, 33,755.79 and 20,946.09 is: 31,266.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.68 : 33,755.79 = 20,946.09 : x
  2. Step 2: Convert to fraction form
    22,613.68/33,755.79 = 20,946.09/x
  3. Step 3: Cross multiply
    22,613.68x = 33,755.79 × 20,946.09
  4. Step 4: Simplify right side
    22,613.68x = 707,051,710.63
  5. Step 5: Solve for x
    x = 707,051,710.63/22,613.68
  6. Step 6: Final answer
    x = 31,266.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.