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Finding the Fourth Proportional to 6,572.64, 9,069.36 and 3,778.32

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Solution

The fourth proportional to 6,572.64, 9,069.36 and 3,778.32 is: 5,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,572.64 : 9,069.36 = 3,778.32 : x
  2. Step 2: Convert to fraction form
    6,572.64/9,069.36 = 3,778.32/x
  3. Step 3: Cross multiply
    6,572.64x = 9,069.36 × 3,778.32
  4. Step 4: Simplify right side
    6,572.64x = 34,266,944.28
  5. Step 5: Solve for x
    x = 34,266,944.28/6,572.64
  6. Step 6: Final answer
    x = 5,213.57

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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.