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Finding the Fourth Proportional to 29,208.80, 43,712.40 and 17,530.40

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Solution

The fourth proportional to 29,208.80, 43,712.40 and 17,530.40 is: 26,235.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,208.80 : 43,712.40 = 17,530.40 : x
  2. Step 2: Convert to fraction form
    29,208.80/43,712.40 = 17,530.40/x
  3. Step 3: Cross multiply
    29,208.80x = 43,712.40 × 17,530.40
  4. Step 4: Simplify right side
    29,208.80x = 766,295,856.96
  5. Step 5: Solve for x
    x = 766,295,856.96/29,208.80
  6. Step 6: Final answer
    x = 26,235.10

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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.