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Finding the Fourth Proportional to 69,820.40, 104,725.80 and 22,434.80

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Solution

The fourth proportional to 69,820.40, 104,725.80 and 22,434.80 is: 33,650.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,820.40 : 104,725.80 = 22,434.80 : x
  2. Step 2: Convert to fraction form
    69,820.40/104,725.80 = 22,434.80/x
  3. Step 3: Cross multiply
    69,820.40x = 104,725.80 × 22,434.80
  4. Step 4: Simplify right side
    69,820.40x = 2,349,502,377.84
  5. Step 5: Solve for x
    x = 2,349,502,377.84/69,820.40
  6. Step 6: Final answer
    x = 33,650.66

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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.