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Finding the Fourth Proportional to 7,236.71, 9,987.12 and 4,050.37

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Solution

The fourth proportional to 7,236.71, 9,987.12 and 4,050.37 is: 5,589.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,236.71 : 9,987.12 = 4,050.37 : x
  2. Step 2: Convert to fraction form
    7,236.71/9,987.12 = 4,050.37/x
  3. Step 3: Cross multiply
    7,236.71x = 9,987.12 × 4,050.37
  4. Step 4: Simplify right side
    7,236.71x = 40,451,506.27
  5. Step 5: Solve for x
    x = 40,451,506.27/7,236.71
  6. Step 6: Final answer
    x = 5,589.77

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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.