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Finding the Fourth Proportional to 45,098.70, 67,647.57 and 13,934.22

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Solution

The fourth proportional to 45,098.70, 67,647.57 and 13,934.22 is: 20,901.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,098.70 : 67,647.57 = 13,934.22 : x
  2. Step 2: Convert to fraction form
    45,098.70/67,647.57 = 13,934.22/x
  3. Step 3: Cross multiply
    45,098.70x = 67,647.57 × 13,934.22
  4. Step 4: Simplify right side
    45,098.70x = 942,616,122.85
  5. Step 5: Solve for x
    x = 942,616,122.85/45,098.70
  6. Step 6: Final answer
    x = 20,901.18

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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.