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Finding the Fourth Proportional to 6,652.72, 9,981.34 and 4,184.64

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Solution

The fourth proportional to 6,652.72, 9,981.34 and 4,184.64 is: 6,278.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652.72 : 9,981.34 = 4,184.64 : x
  2. Step 2: Convert to fraction form
    6,652.72/9,981.34 = 4,184.64/x
  3. Step 3: Cross multiply
    6,652.72x = 9,981.34 × 4,184.64
  4. Step 4: Simplify right side
    6,652.72x = 41,768,314.62
  5. Step 5: Solve for x
    x = 41,768,314.62/6,652.72
  6. Step 6: Final answer
    x = 6,278.38

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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.