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Finding the Fourth Proportional to 69,108.84, 95,364 and 38,896.56

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Solution

The fourth proportional to 69,108.84, 95,364 and 38,896.56 is: 53,673.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,108.84 : 95,364 = 38,896.56 : x
  2. Step 2: Convert to fraction form
    69,108.84/95,364 = 38,896.56/x
  3. Step 3: Cross multiply
    69,108.84x = 95,364 × 38,896.56
  4. Step 4: Simplify right side
    69,108.84x = 3,709,331,547.84
  5. Step 5: Solve for x
    x = 3,709,331,547.84/69,108.84
  6. Step 6: Final answer
    x = 53,673.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.