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Finding the Fourth Proportional to 8,571.11, 11,828.21 and 5,034.38

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Solution

The fourth proportional to 8,571.11, 11,828.21 and 5,034.38 is: 6,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.11 : 11,828.21 = 5,034.38 : x
  2. Step 2: Convert to fraction form
    8,571.11/11,828.21 = 5,034.38/x
  3. Step 3: Cross multiply
    8,571.11x = 11,828.21 × 5,034.38
  4. Step 4: Simplify right side
    8,571.11x = 59,547,619.55
  5. Step 5: Solve for x
    x = 59,547,619.55/8,571.11
  6. Step 6: Final answer
    x = 6,947.48

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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.