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Finding the Fourth Proportional to 31,491.84, 43,460.72 and 17,344.68

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Solution

The fourth proportional to 31,491.84, 43,460.72 and 17,344.68 is: 23,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,491.84 : 43,460.72 = 17,344.68 : x
  2. Step 2: Convert to fraction form
    31,491.84/43,460.72 = 17,344.68/x
  3. Step 3: Cross multiply
    31,491.84x = 43,460.72 × 17,344.68
  4. Step 4: Simplify right side
    31,491.84x = 753,812,280.97
  5. Step 5: Solve for x
    x = 753,812,280.97/31,491.84
  6. Step 6: Final answer
    x = 23,936.75

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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.