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Finding the Fourth Proportional to 31,491.99, 43,460.91 and 17,344.83

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Solution

The fourth proportional to 31,491.99, 43,460.91 and 17,344.83 is: 23,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,491.99 : 43,460.91 = 17,344.83 : x
  2. Step 2: Convert to fraction form
    31,491.99/43,460.91 = 17,344.83/x
  3. Step 3: Cross multiply
    31,491.99x = 43,460.91 × 17,344.83
  4. Step 4: Simplify right side
    31,491.99x = 753,822,095.60
  5. Step 5: Solve for x
    x = 753,822,095.60/31,491.99
  6. Step 6: Final answer
    x = 23,936.95

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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.