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Finding the Fourth Proportional to 6,522.42, 9,000.87 and 3,690.35

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Solution

The fourth proportional to 6,522.42, 9,000.87 and 3,690.35 is: 5,092.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,522.42 : 9,000.87 = 3,690.35 : x
  2. Step 2: Convert to fraction form
    6,522.42/9,000.87 = 3,690.35/x
  3. Step 3: Cross multiply
    6,522.42x = 9,000.87 × 3,690.35
  4. Step 4: Simplify right side
    6,522.42x = 33,216,315.60
  5. Step 5: Solve for x
    x = 33,216,315.60/6,522.42
  6. Step 6: Final answer
    x = 5,092.64

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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.