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Finding the Fourth Proportional to 5,728.88, 8,592.69 and 2,798.30

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Solution

The fourth proportional to 5,728.88, 8,592.69 and 2,798.30 is: 4,197.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.88 : 8,592.69 = 2,798.30 : x
  2. Step 2: Convert to fraction form
    5,728.88/8,592.69 = 2,798.30/x
  3. Step 3: Cross multiply
    5,728.88x = 8,592.69 × 2,798.30
  4. Step 4: Simplify right side
    5,728.88x = 24,044,924.43
  5. Step 5: Solve for x
    x = 24,044,924.43/5,728.88
  6. Step 6: Final answer
    x = 4,197.14

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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.