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Finding the Fourth Proportional to 9,273.96, 12,798.14 and 5,082.21

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Solution

The fourth proportional to 9,273.96, 12,798.14 and 5,082.21 is: 7,013.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,273.96 : 12,798.14 = 5,082.21 : x
  2. Step 2: Convert to fraction form
    9,273.96/12,798.14 = 5,082.21/x
  3. Step 3: Cross multiply
    9,273.96x = 12,798.14 × 5,082.21
  4. Step 4: Simplify right side
    9,273.96x = 65,042,809.68
  5. Step 5: Solve for x
    x = 65,042,809.68/9,273.96
  6. Step 6: Final answer
    x = 7,013.49

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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.