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Finding the Fourth Proportional to 17,901.28, 26,839.68 and 8,534.08

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Solution

The fourth proportional to 17,901.28, 26,839.68 and 8,534.08 is: 12,795.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,901.28 : 26,839.68 = 8,534.08 : x
  2. Step 2: Convert to fraction form
    17,901.28/26,839.68 = 8,534.08/x
  3. Step 3: Cross multiply
    17,901.28x = 26,839.68 × 8,534.08
  4. Step 4: Simplify right side
    17,901.28x = 229,051,976.29
  5. Step 5: Solve for x
    x = 229,051,976.29/17,901.28
  6. Step 6: Final answer
    x = 12,795.28

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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.