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Finding the Fourth Proportional to 28,996.61, 40,034.60 and 22,270.22

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Solution

The fourth proportional to 28,996.61, 40,034.60 and 22,270.22 is: 30,747.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.61 : 40,034.60 = 22,270.22 : x
  2. Step 2: Convert to fraction form
    28,996.61/40,034.60 = 22,270.22/x
  3. Step 3: Cross multiply
    28,996.61x = 40,034.60 × 22,270.22
  4. Step 4: Simplify right side
    28,996.61x = 891,579,505.37
  5. Step 5: Solve for x
    x = 891,579,505.37/28,996.61
  6. Step 6: Final answer
    x = 30,747.71

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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.