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Finding the Fourth Proportional to 7,497.43, 11,240.07 and 3,118.16

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Solution

The fourth proportional to 7,497.43, 11,240.07 and 3,118.16 is: 4,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,497.43 : 11,240.07 = 3,118.16 : x
  2. Step 2: Convert to fraction form
    7,497.43/11,240.07 = 3,118.16/x
  3. Step 3: Cross multiply
    7,497.43x = 11,240.07 × 3,118.16
  4. Step 4: Simplify right side
    7,497.43x = 35,048,353.08
  5. Step 5: Solve for x
    x = 35,048,353.08/7,497.43
  6. Step 6: Final answer
    x = 4,674.72

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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.