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Finding the Fourth Proportional to 22,672.80, 34,009.20 and 7,090.56

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Solution

The fourth proportional to 22,672.80, 34,009.20 and 7,090.56 is: 10,635.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,672.80 : 34,009.20 = 7,090.56 : x
  2. Step 2: Convert to fraction form
    22,672.80/34,009.20 = 7,090.56/x
  3. Step 3: Cross multiply
    22,672.80x = 34,009.20 × 7,090.56
  4. Step 4: Simplify right side
    22,672.80x = 241,144,273.15
  5. Step 5: Solve for x
    x = 241,144,273.15/22,672.80
  6. Step 6: Final answer
    x = 10,635.84

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1.5x scale

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.