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Finding the Fourth Proportional to 69,888.84, 104,831.94 and 17,298.30

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Solution

The fourth proportional to 69,888.84, 104,831.94 and 17,298.30 is: 25,947.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,888.84 : 104,831.94 = 17,298.30 : x
  2. Step 2: Convert to fraction form
    69,888.84/104,831.94 = 17,298.30/x
  3. Step 3: Cross multiply
    69,888.84x = 104,831.94 × 17,298.30
  4. Step 4: Simplify right side
    69,888.84x = 1,813,414,347.70
  5. Step 5: Solve for x
    x = 1,813,414,347.70/69,888.84
  6. Step 6: Final answer
    x = 25,947.12

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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.