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Finding the Fourth Proportional to 11,471.01, 15,836.90 and 7,498.77

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Solution

The fourth proportional to 11,471.01, 15,836.90 and 7,498.77 is: 10,352.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,471.01 : 15,836.90 = 7,498.77 : x
  2. Step 2: Convert to fraction form
    11,471.01/15,836.90 = 7,498.77/x
  3. Step 3: Cross multiply
    11,471.01x = 15,836.90 × 7,498.77
  4. Step 4: Simplify right side
    11,471.01x = 118,757,233.12
  5. Step 5: Solve for x
    x = 118,757,233.12/11,471.01
  6. Step 6: Final answer
    x = 10,352.81

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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.