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Finding the Fourth Proportional to 17,653.77, 26,474.76 and 7,121.07

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Solution

The fourth proportional to 17,653.77, 26,474.76 and 7,121.07 is: 10,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,653.77 : 26,474.76 = 7,121.07 : x
  2. Step 2: Convert to fraction form
    17,653.77/26,474.76 = 7,121.07/x
  3. Step 3: Cross multiply
    17,653.77x = 26,474.76 × 7,121.07
  4. Step 4: Simplify right side
    17,653.77x = 188,528,619.19
  5. Step 5: Solve for x
    x = 188,528,619.19/17,653.77
  6. Step 6: Final answer
    x = 10,679.23

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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.