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Finding the Fourth Proportional to 5,580.44, 8,404.07 and 5,082.21

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Solution

The fourth proportional to 5,580.44, 8,404.07 and 5,082.21 is: 7,653.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.44 : 8,404.07 = 5,082.21 : x
  2. Step 2: Convert to fraction form
    5,580.44/8,404.07 = 5,082.21/x
  3. Step 3: Cross multiply
    5,580.44x = 8,404.07 × 5,082.21
  4. Step 4: Simplify right side
    5,580.44x = 42,711,282.31
  5. Step 5: Solve for x
    x = 42,711,282.31/5,580.44
  6. Step 6: Final answer
    x = 7,653.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.