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Finding the Fourth Proportional to 5,825.03, 8,728.90 and 4,278.47

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Solution

The fourth proportional to 5,825.03, 8,728.90 and 4,278.47 is: 6,411.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,825.03 : 8,728.90 = 4,278.47 : x
  2. Step 2: Convert to fraction form
    5,825.03/8,728.90 = 4,278.47/x
  3. Step 3: Cross multiply
    5,825.03x = 8,728.90 × 4,278.47
  4. Step 4: Simplify right side
    5,825.03x = 37,346,282.44
  5. Step 5: Solve for x
    x = 37,346,282.44/5,825.03
  6. Step 6: Final answer
    x = 6,411.35

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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.