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Finding the Fourth Proportional to 29,230.80, 43,788.60 and 17,509.20

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Solution

The fourth proportional to 29,230.80, 43,788.60 and 17,509.20 is: 26,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,230.80 : 43,788.60 = 17,509.20 : x
  2. Step 2: Convert to fraction form
    29,230.80/43,788.60 = 17,509.20/x
  3. Step 3: Cross multiply
    29,230.80x = 43,788.60 × 17,509.20
  4. Step 4: Simplify right side
    29,230.80x = 766,703,355.12
  5. Step 5: Solve for x
    x = 766,703,355.12/29,230.80
  6. Step 6: Final answer
    x = 26,229.30

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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.