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Finding the Fourth Proportional to 16,955.84, 25,433.22 and 5,109.68

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Solution

The fourth proportional to 16,955.84, 25,433.22 and 5,109.68 is: 7,664.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,955.84 : 25,433.22 = 5,109.68 : x
  2. Step 2: Convert to fraction form
    16,955.84/25,433.22 = 5,109.68/x
  3. Step 3: Cross multiply
    16,955.84x = 25,433.22 × 5,109.68
  4. Step 4: Simplify right side
    16,955.84x = 129,955,615.57
  5. Step 5: Solve for x
    x = 129,955,615.57/16,955.84
  6. Step 6: Final answer
    x = 7,664.36

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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.