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Finding the Fourth Proportional to 61,622.68, 92,434.02 and 20,069.68

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Solution

The fourth proportional to 61,622.68, 92,434.02 and 20,069.68 is: 30,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,622.68 : 92,434.02 = 20,069.68 : x
  2. Step 2: Convert to fraction form
    61,622.68/92,434.02 = 20,069.68/x
  3. Step 3: Cross multiply
    61,622.68x = 92,434.02 × 20,069.68
  4. Step 4: Simplify right side
    61,622.68x = 1,855,120,896.17
  5. Step 5: Solve for x
    x = 1,855,120,896.17/61,622.68
  6. Step 6: Final answer
    x = 30,104.52

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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.