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Finding the Fourth Proportional to 7,950.43, 11,933.43 and 6,642.60

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Solution

The fourth proportional to 7,950.43, 11,933.43 and 6,642.60 is: 9,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950.43 : 11,933.43 = 6,642.60 : x
  2. Step 2: Convert to fraction form
    7,950.43/11,933.43 = 6,642.60/x
  3. Step 3: Cross multiply
    7,950.43x = 11,933.43 × 6,642.60
  4. Step 4: Simplify right side
    7,950.43x = 79,269,002.12
  5. Step 5: Solve for x
    x = 79,269,002.12/7,950.43
  6. Step 6: Final answer
    x = 9,970.40

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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.