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Finding the Fourth Proportional to 69,368.15, 104,065.35 and 21,995.17

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Solution

The fourth proportional to 69,368.15, 104,065.35 and 21,995.17 is: 32,996.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,368.15 : 104,065.35 = 21,995.17 : x
  2. Step 2: Convert to fraction form
    69,368.15/104,065.35 = 21,995.17/x
  3. Step 3: Cross multiply
    69,368.15x = 104,065.35 × 21,995.17
  4. Step 4: Simplify right side
    69,368.15x = 2,288,935,064.36
  5. Step 5: Solve for x
    x = 2,288,935,064.36/69,368.15
  6. Step 6: Final answer
    x = 32,996.92

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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.