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Finding the Fourth Proportional to 5,278.91, 7,895.07 and 4,697.73

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Solution

The fourth proportional to 5,278.91, 7,895.07 and 4,697.73 is: 7,025.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.91 : 7,895.07 = 4,697.73 : x
  2. Step 2: Convert to fraction form
    5,278.91/7,895.07 = 4,697.73/x
  3. Step 3: Cross multiply
    5,278.91x = 7,895.07 × 4,697.73
  4. Step 4: Simplify right side
    5,278.91x = 37,088,907.19
  5. Step 5: Solve for x
    x = 37,088,907.19/5,278.91
  6. Step 6: Final answer
    x = 7,025.87

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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.