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Finding the Fourth Proportional to 17,963.57, 26,943.98 and 7,430.87

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Solution

The fourth proportional to 17,963.57, 26,943.98 and 7,430.87 is: 11,145.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,963.57 : 26,943.98 = 7,430.87 : x
  2. Step 2: Convert to fraction form
    17,963.57/26,943.98 = 7,430.87/x
  3. Step 3: Cross multiply
    17,963.57x = 26,943.98 × 7,430.87
  4. Step 4: Simplify right side
    17,963.57x = 200,217,242.87
  5. Step 5: Solve for x
    x = 200,217,242.87/17,963.57
  6. Step 6: Final answer
    x = 11,145.74

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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.