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Finding the Fourth Proportional to 7,572.56, 11,331.06 and 6,320.06

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Solution

The fourth proportional to 7,572.56, 11,331.06 and 6,320.06 is: 9,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.56 : 11,331.06 = 6,320.06 : x
  2. Step 2: Convert to fraction form
    7,572.56/11,331.06 = 6,320.06/x
  3. Step 3: Cross multiply
    7,572.56x = 11,331.06 × 6,320.06
  4. Step 4: Simplify right side
    7,572.56x = 71,612,922.41
  5. Step 5: Solve for x
    x = 71,612,922.41/7,572.56
  6. Step 6: Final answer
    x = 9,456.90

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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.