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Finding the Fourth Proportional to 7,215.06, 10,822.59 and 1,743.06

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Solution

The fourth proportional to 7,215.06, 10,822.59 and 1,743.06 is: 2,614.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.06 : 10,822.59 = 1,743.06 : x
  2. Step 2: Convert to fraction form
    7,215.06/10,822.59 = 1,743.06/x
  3. Step 3: Cross multiply
    7,215.06x = 10,822.59 × 1,743.06
  4. Step 4: Simplify right side
    7,215.06x = 18,864,423.73
  5. Step 5: Solve for x
    x = 18,864,423.73/7,215.06
  6. Step 6: Final answer
    x = 2,614.59

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Similar ratio
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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.