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Finding the Fourth Proportional to 27,079.55, 40,619.10 and 7,357.98

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Solution

The fourth proportional to 27,079.55, 40,619.10 and 7,357.98 is: 11,036.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,079.55 : 40,619.10 = 7,357.98 : x
  2. Step 2: Convert to fraction form
    27,079.55/40,619.10 = 7,357.98/x
  3. Step 3: Cross multiply
    27,079.55x = 40,619.10 × 7,357.98
  4. Step 4: Simplify right side
    27,079.55x = 298,874,525.42
  5. Step 5: Solve for x
    x = 298,874,525.42/27,079.55
  6. Step 6: Final answer
    x = 11,036.91

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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.