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Finding the Fourth Proportional to 61,690.74, 92,542.62 and 19,576.80

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Solution

The fourth proportional to 61,690.74, 92,542.62 and 19,576.80 is: 29,367.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,690.74 : 92,542.62 = 19,576.80 : x
  2. Step 2: Convert to fraction form
    61,690.74/92,542.62 = 19,576.80/x
  3. Step 3: Cross multiply
    61,690.74x = 92,542.62 × 19,576.80
  4. Step 4: Simplify right side
    61,690.74x = 1,811,688,363.22
  5. Step 5: Solve for x
    x = 1,811,688,363.22/61,690.74
  6. Step 6: Final answer
    x = 29,367.27

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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.