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Finding the Fourth Proportional to 29,081.80, 43,622.70 and 19,232.20

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Solution

The fourth proportional to 29,081.80, 43,622.70 and 19,232.20 is: 28,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,081.80 : 43,622.70 = 19,232.20 : x
  2. Step 2: Convert to fraction form
    29,081.80/43,622.70 = 19,232.20/x
  3. Step 3: Cross multiply
    29,081.80x = 43,622.70 × 19,232.20
  4. Step 4: Simplify right side
    29,081.80x = 838,960,490.94
  5. Step 5: Solve for x
    x = 838,960,490.94/29,081.80
  6. Step 6: Final answer
    x = 28,848.30

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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.