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Finding the Fourth Proportional to 6,364.90, 8,780.43 and 5,524.48

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Solution

The fourth proportional to 6,364.90, 8,780.43 and 5,524.48 is: 7,621.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,364.90 : 8,780.43 = 5,524.48 : x
  2. Step 2: Convert to fraction form
    6,364.90/8,780.43 = 5,524.48/x
  3. Step 3: Cross multiply
    6,364.90x = 8,780.43 × 5,524.48
  4. Step 4: Simplify right side
    6,364.90x = 48,507,309.93
  5. Step 5: Solve for x
    x = 48,507,309.93/6,364.90
  6. Step 6: Final answer
    x = 7,621.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.