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Finding the Fourth Proportional to 17,975.70, 26,963.55 and 11,754.90

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Solution

The fourth proportional to 17,975.70, 26,963.55 and 11,754.90 is: 17,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,975.70 : 26,963.55 = 11,754.90 : x
  2. Step 2: Convert to fraction form
    17,975.70/26,963.55 = 11,754.90/x
  3. Step 3: Cross multiply
    17,975.70x = 26,963.55 × 11,754.90
  4. Step 4: Simplify right side
    17,975.70x = 316,953,833.90
  5. Step 5: Solve for x
    x = 316,953,833.90/17,975.70
  6. Step 6: Final answer
    x = 17,632.35

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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.