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Finding the Fourth Proportional to 7,008.77, 9,672.78 and 5,237.30

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Solution

The fourth proportional to 7,008.77, 9,672.78 and 5,237.30 is: 7,227.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.77 : 9,672.78 = 5,237.30 : x
  2. Step 2: Convert to fraction form
    7,008.77/9,672.78 = 5,237.30/x
  3. Step 3: Cross multiply
    7,008.77x = 9,672.78 × 5,237.30
  4. Step 4: Simplify right side
    7,008.77x = 50,659,202.33
  5. Step 5: Solve for x
    x = 50,659,202.33/7,008.77
  6. Step 6: Final answer
    x = 7,227.98

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Half scale
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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.