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Finding the Fourth Proportional to 16,717.51, 23,069.10 and 9,162.51

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Solution

The fourth proportional to 16,717.51, 23,069.10 and 9,162.51 is: 12,643.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,717.51 : 23,069.10 = 9,162.51 : x
  2. Step 2: Convert to fraction form
    16,717.51/23,069.10 = 9,162.51/x
  3. Step 3: Cross multiply
    16,717.51x = 23,069.10 × 9,162.51
  4. Step 4: Simplify right side
    16,717.51x = 211,370,859.44
  5. Step 5: Solve for x
    x = 211,370,859.44/16,717.51
  6. Step 6: Final answer
    x = 12,643.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.