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Finding the Fourth Proportional to 28,901.80, 43,279.80 and 23,069.80

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Solution

The fourth proportional to 28,901.80, 43,279.80 and 23,069.80 is: 34,546.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.80 : 43,279.80 = 23,069.80 : x
  2. Step 2: Convert to fraction form
    28,901.80/43,279.80 = 23,069.80/x
  3. Step 3: Cross multiply
    28,901.80x = 43,279.80 × 23,069.80
  4. Step 4: Simplify right side
    28,901.80x = 998,456,330.04
  5. Step 5: Solve for x
    x = 998,456,330.04/28,901.80
  6. Step 6: Final answer
    x = 34,546.51

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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.