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Finding the Fourth Proportional to 28,882.98, 43,324.47 and 15,746.40

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Solution

The fourth proportional to 28,882.98, 43,324.47 and 15,746.40 is: 23,619.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,882.98 : 43,324.47 = 15,746.40 : x
  2. Step 2: Convert to fraction form
    28,882.98/43,324.47 = 15,746.40/x
  3. Step 3: Cross multiply
    28,882.98x = 43,324.47 × 15,746.40
  4. Step 4: Simplify right side
    28,882.98x = 682,204,434.41
  5. Step 5: Solve for x
    x = 682,204,434.41/28,882.98
  6. Step 6: Final answer
    x = 23,619.60

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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.