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Finding the Fourth Proportional to 17,988.93, 26,976.91 and 7,601.49

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Solution

The fourth proportional to 17,988.93, 26,976.91 and 7,601.49 is: 11,399.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988.93 : 26,976.91 = 7,601.49 : x
  2. Step 2: Convert to fraction form
    17,988.93/26,976.91 = 7,601.49/x
  3. Step 3: Cross multiply
    17,988.93x = 26,976.91 × 7,601.49
  4. Step 4: Simplify right side
    17,988.93x = 205,064,711.60
  5. Step 5: Solve for x
    x = 205,064,711.60/17,988.93
  6. Step 6: Final answer
    x = 11,399.49

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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.