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Finding the Fourth Proportional to 61,343.75, 92,005.26 and 19,790.75

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Solution

The fourth proportional to 61,343.75, 92,005.26 and 19,790.75 is: 29,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,343.75 : 92,005.26 = 19,790.75 : x
  2. Step 2: Convert to fraction form
    61,343.75/92,005.26 = 19,790.75/x
  3. Step 3: Cross multiply
    61,343.75x = 92,005.26 × 19,790.75
  4. Step 4: Simplify right side
    61,343.75x = 1,820,853,099.35
  5. Step 5: Solve for x
    x = 1,820,853,099.35/61,343.75
  6. Step 6: Final answer
    x = 29,682.78

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1.5x scale

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.