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Finding the Fourth Proportional to 18,315.84, 27,576.93 and 16,704.84

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Solution

The fourth proportional to 18,315.84, 27,576.93 and 16,704.84 is: 25,151.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.84 : 27,576.93 = 16,704.84 : x
  2. Step 2: Convert to fraction form
    18,315.84/27,576.93 = 16,704.84/x
  3. Step 3: Cross multiply
    18,315.84x = 27,576.93 × 16,704.84
  4. Step 4: Simplify right side
    18,315.84x = 460,668,203.34
  5. Step 5: Solve for x
    x = 460,668,203.34/18,315.84
  6. Step 6: Final answer
    x = 25,151.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.