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Finding the Fourth Proportional to 17,021.80, 25,524.90 and 9,123.10

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Solution

The fourth proportional to 17,021.80, 25,524.90 and 9,123.10 is: 13,680.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,021.80 : 25,524.90 = 9,123.10 : x
  2. Step 2: Convert to fraction form
    17,021.80/25,524.90 = 9,123.10/x
  3. Step 3: Cross multiply
    17,021.80x = 25,524.90 × 9,123.10
  4. Step 4: Simplify right side
    17,021.80x = 232,866,215.19
  5. Step 5: Solve for x
    x = 232,866,215.19/17,021.80
  6. Step 6: Final answer
    x = 13,680.47

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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.