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Finding the Fourth Proportional to 29,265.60, 43,898.40 and 18,206.40

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Solution

The fourth proportional to 29,265.60, 43,898.40 and 18,206.40 is: 27,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,265.60 : 43,898.40 = 18,206.40 : x
  2. Step 2: Convert to fraction form
    29,265.60/43,898.40 = 18,206.40/x
  3. Step 3: Cross multiply
    29,265.60x = 43,898.40 × 18,206.40
  4. Step 4: Simplify right side
    29,265.60x = 799,231,829.76
  5. Step 5: Solve for x
    x = 799,231,829.76/29,265.60
  6. Step 6: Final answer
    x = 27,309.60

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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.