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Finding the Fourth Proportional to 6,605.55, 9,110.88 and 5,609.25

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Solution

The fourth proportional to 6,605.55, 9,110.88 and 5,609.25 is: 7,736.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.55 : 9,110.88 = 5,609.25 : x
  2. Step 2: Convert to fraction form
    6,605.55/9,110.88 = 5,609.25/x
  3. Step 3: Cross multiply
    6,605.55x = 9,110.88 × 5,609.25
  4. Step 4: Simplify right side
    6,605.55x = 51,105,203.64
  5. Step 5: Solve for x
    x = 51,105,203.64/6,605.55
  6. Step 6: Final answer
    x = 7,736.71

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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.