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Finding the Fourth Proportional to 66,036.78, 99,079.83 and 26,605.08

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Solution

The fourth proportional to 66,036.78, 99,079.83 and 26,605.08 is: 39,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,036.78 : 99,079.83 = 26,605.08 : x
  2. Step 2: Convert to fraction form
    66,036.78/99,079.83 = 26,605.08/x
  3. Step 3: Cross multiply
    66,036.78x = 99,079.83 × 26,605.08
  4. Step 4: Simplify right side
    66,036.78x = 2,636,026,803.54
  5. Step 5: Solve for x
    x = 2,636,026,803.54/66,036.78
  6. Step 6: Final answer
    x = 39,917.56

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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.