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Finding the Fourth Proportional to 22,697.80, 34,047.30 and 7,115.80

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Solution

The fourth proportional to 22,697.80, 34,047.30 and 7,115.80 is: 10,673.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,697.80 : 34,047.30 = 7,115.80 : x
  2. Step 2: Convert to fraction form
    22,697.80/34,047.30 = 7,115.80/x
  3. Step 3: Cross multiply
    22,697.80x = 34,047.30 × 7,115.80
  4. Step 4: Simplify right side
    22,697.80x = 242,273,777.34
  5. Step 5: Solve for x
    x = 242,273,777.34/22,697.80
  6. Step 6: Final answer
    x = 10,673.89

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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.