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Finding the Fourth Proportional to 4,879.32, 7,320.15 and 1,592.42

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Solution

The fourth proportional to 4,879.32, 7,320.15 and 1,592.42 is: 2,389.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.32 : 7,320.15 = 1,592.42 : x
  2. Step 2: Convert to fraction form
    4,879.32/7,320.15 = 1,592.42/x
  3. Step 3: Cross multiply
    4,879.32x = 7,320.15 × 1,592.42
  4. Step 4: Simplify right side
    4,879.32x = 11,656,745.30
  5. Step 5: Solve for x
    x = 11,656,745.30/4,879.32
  6. Step 6: Final answer
    x = 2,389.01

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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.