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Finding the Fourth Proportional to 26,358.60, 39,537.90 and 8,826.60

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Solution

The fourth proportional to 26,358.60, 39,537.90 and 8,826.60 is: 13,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,358.60 : 39,537.90 = 8,826.60 : x
  2. Step 2: Convert to fraction form
    26,358.60/39,537.90 = 8,826.60/x
  3. Step 3: Cross multiply
    26,358.60x = 39,537.90 × 8,826.60
  4. Step 4: Simplify right side
    26,358.60x = 348,985,228.14
  5. Step 5: Solve for x
    x = 348,985,228.14/26,358.60
  6. Step 6: Final answer
    x = 13,239.90

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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.