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Finding the Fourth Proportional to 9,141.01, 13,716.88 and 5,809.12

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Solution

The fourth proportional to 9,141.01, 13,716.88 and 5,809.12 is: 8,717.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,141.01 : 13,716.88 = 5,809.12 : x
  2. Step 2: Convert to fraction form
    9,141.01/13,716.88 = 5,809.12/x
  3. Step 3: Cross multiply
    9,141.01x = 13,716.88 × 5,809.12
  4. Step 4: Simplify right side
    9,141.01x = 79,682,953.13
  5. Step 5: Solve for x
    x = 79,682,953.13/9,141.01
  6. Step 6: Final answer
    x = 8,717.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.