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Finding the Fourth Proportional to 5,872.79, 8,763.63 and 5,249.63

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Solution

The fourth proportional to 5,872.79, 8,763.63 and 5,249.63 is: 7,833.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.79 : 8,763.63 = 5,249.63 : x
  2. Step 2: Convert to fraction form
    5,872.79/8,763.63 = 5,249.63/x
  3. Step 3: Cross multiply
    5,872.79x = 8,763.63 × 5,249.63
  4. Step 4: Simplify right side
    5,872.79x = 46,005,771.14
  5. Step 5: Solve for x
    x = 46,005,771.14/5,872.79
  6. Step 6: Final answer
    x = 7,833.72

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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.