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Finding the Fourth Proportional to 7,234.65, 9,984.97 and 4,251.22

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Solution

The fourth proportional to 7,234.65, 9,984.97 and 4,251.22 is: 5,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,234.65 : 9,984.97 = 4,251.22 : x
  2. Step 2: Convert to fraction form
    7,234.65/9,984.97 = 4,251.22/x
  3. Step 3: Cross multiply
    7,234.65x = 9,984.97 × 4,251.22
  4. Step 4: Simplify right side
    7,234.65x = 42,448,284.51
  5. Step 5: Solve for x
    x = 42,448,284.51/7,234.65
  6. Step 6: Final answer
    x = 5,867.36

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Double scale
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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.