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Finding the Fourth Proportional to 15,797.16, 21,800.03 and 8,723.52

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Solution

The fourth proportional to 15,797.16, 21,800.03 and 8,723.52 is: 12,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797.16 : 21,800.03 = 8,723.52 : x
  2. Step 2: Convert to fraction form
    15,797.16/21,800.03 = 8,723.52/x
  3. Step 3: Cross multiply
    15,797.16x = 21,800.03 × 8,723.52
  4. Step 4: Simplify right side
    15,797.16x = 190,172,954.09
  5. Step 5: Solve for x
    x = 190,172,954.09/15,797.16
  6. Step 6: Final answer
    x = 12,038.43

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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.