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Finding the Fourth Proportional to 11,416.01, 15,754.91 and 6,938.91

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Solution

The fourth proportional to 11,416.01, 15,754.91 and 6,938.91 is: 9,576.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.01 : 15,754.91 = 6,938.91 : x
  2. Step 2: Convert to fraction form
    11,416.01/15,754.91 = 6,938.91/x
  3. Step 3: Cross multiply
    11,416.01x = 15,754.91 × 6,938.91
  4. Step 4: Simplify right side
    11,416.01x = 109,321,867.85
  5. Step 5: Solve for x
    x = 109,321,867.85/11,416.01
  6. Step 6: Final answer
    x = 9,576.19

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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.