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Finding the Fourth Proportional to 26,598.66, 39,893.65 and 12,558.66

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Solution

The fourth proportional to 26,598.66, 39,893.65 and 12,558.66 is: 18,835.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,598.66 : 39,893.65 = 12,558.66 : x
  2. Step 2: Convert to fraction form
    26,598.66/39,893.65 = 12,558.66/x
  3. Step 3: Cross multiply
    26,598.66x = 39,893.65 × 12,558.66
  4. Step 4: Simplify right side
    26,598.66x = 501,010,786.51
  5. Step 5: Solve for x
    x = 501,010,786.51/26,598.66
  6. Step 6: Final answer
    x = 18,835.94

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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.