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Finding the Fourth Proportional to 68,952.03, 103,434.03 and 19,032.15

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Solution

The fourth proportional to 68,952.03, 103,434.03 and 19,032.15 is: 28,549.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,952.03 : 103,434.03 = 19,032.15 : x
  2. Step 2: Convert to fraction form
    68,952.03/103,434.03 = 19,032.15/x
  3. Step 3: Cross multiply
    68,952.03x = 103,434.03 × 19,032.15
  4. Step 4: Simplify right side
    68,952.03x = 1,968,571,974.06
  5. Step 5: Solve for x
    x = 1,968,571,974.06/68,952.03
  6. Step 6: Final answer
    x = 28,549.88

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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.