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Finding the Fourth Proportional to 40,294, 55,606.71 and 22,144.48

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Solution

The fourth proportional to 40,294, 55,606.71 and 22,144.48 is: 30,559.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,294 : 55,606.71 = 22,144.48 : x
  2. Step 2: Convert to fraction form
    40,294/55,606.71 = 22,144.48/x
  3. Step 3: Cross multiply
    40,294x = 55,606.71 × 22,144.48
  4. Step 4: Simplify right side
    40,294x = 1,231,381,677.46
  5. Step 5: Solve for x
    x = 1,231,381,677.46/40,294
  6. Step 6: Final answer
    x = 30,559.93

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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.