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Finding the Fourth Proportional to 68,045.64, 102,036.06 and 25,927.80

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Solution

The fourth proportional to 68,045.64, 102,036.06 and 25,927.80 is: 38,879.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,045.64 : 102,036.06 = 25,927.80 : x
  2. Step 2: Convert to fraction form
    68,045.64/102,036.06 = 25,927.80/x
  3. Step 3: Cross multiply
    68,045.64x = 102,036.06 × 25,927.80
  4. Step 4: Simplify right side
    68,045.64x = 2,645,570,556.47
  5. Step 5: Solve for x
    x = 2,645,570,556.47/68,045.64
  6. Step 6: Final answer
    x = 38,879.35

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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.