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Finding the Fourth Proportional to 24,721.80, 37,079.10 and 7,189.80

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Solution

The fourth proportional to 24,721.80, 37,079.10 and 7,189.80 is: 10,783.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,721.80 : 37,079.10 = 7,189.80 : x
  2. Step 2: Convert to fraction form
    24,721.80/37,079.10 = 7,189.80/x
  3. Step 3: Cross multiply
    24,721.80x = 37,079.10 × 7,189.80
  4. Step 4: Simplify right side
    24,721.80x = 266,591,313.18
  5. Step 5: Solve for x
    x = 266,591,313.18/24,721.80
  6. Step 6: Final answer
    x = 10,783.65

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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.