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Finding the Fourth Proportional to 40,572.76, 55,990.52 and 22,668.44

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Solution

The fourth proportional to 40,572.76, 55,990.52 and 22,668.44 is: 31,282.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,572.76 : 55,990.52 = 22,668.44 : x
  2. Step 2: Convert to fraction form
    40,572.76/55,990.52 = 22,668.44/x
  3. Step 3: Cross multiply
    40,572.76x = 55,990.52 × 22,668.44
  4. Step 4: Simplify right side
    40,572.76x = 1,269,217,743.19
  5. Step 5: Solve for x
    x = 1,269,217,743.19/40,572.76
  6. Step 6: Final answer
    x = 31,282.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.