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Finding the Fourth Proportional to 28,801.43, 43,203.49 and 9,081.50

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Solution

The fourth proportional to 28,801.43, 43,203.49 and 9,081.50 is: 13,622.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,801.43 : 43,203.49 = 9,081.50 : x
  2. Step 2: Convert to fraction form
    28,801.43/43,203.49 = 9,081.50/x
  3. Step 3: Cross multiply
    28,801.43x = 43,203.49 × 9,081.50
  4. Step 4: Simplify right side
    28,801.43x = 392,352,579.74
  5. Step 5: Solve for x
    x = 392,352,579.74/28,801.43
  6. Step 6: Final answer
    x = 13,622.68

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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.