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Finding the Fourth Proportional to 5,775.05, 8,620.81 and 5,074.42

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Solution

The fourth proportional to 5,775.05, 8,620.81 and 5,074.42 is: 7,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,775.05 : 8,620.81 = 5,074.42 : x
  2. Step 2: Convert to fraction form
    5,775.05/8,620.81 = 5,074.42/x
  3. Step 3: Cross multiply
    5,775.05x = 8,620.81 × 5,074.42
  4. Step 4: Simplify right side
    5,775.05x = 43,745,592.61
  5. Step 5: Solve for x
    x = 43,745,592.61/5,775.05
  6. Step 6: Final answer
    x = 7,574.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.