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Finding the Fourth Proportional to 8,065.99, 11,128.21 and 5,273.11

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Solution

The fourth proportional to 8,065.99, 11,128.21 and 5,273.11 is: 7,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065.99 : 11,128.21 = 5,273.11 : x
  2. Step 2: Convert to fraction form
    8,065.99/11,128.21 = 5,273.11/x
  3. Step 3: Cross multiply
    8,065.99x = 11,128.21 × 5,273.11
  4. Step 4: Simplify right side
    8,065.99x = 58,680,275.43
  5. Step 5: Solve for x
    x = 58,680,275.43/8,065.99
  6. Step 6: Final answer
    x = 7,275.02

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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.