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Finding the Fourth Proportional to 34,393.50, 47,463.05 and 20,255.06

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Solution

The fourth proportional to 34,393.50, 47,463.05 and 20,255.06 is: 27,951.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,393.50 : 47,463.05 = 20,255.06 : x
  2. Step 2: Convert to fraction form
    34,393.50/47,463.05 = 20,255.06/x
  3. Step 3: Cross multiply
    34,393.50x = 47,463.05 × 20,255.06
  4. Step 4: Simplify right side
    34,393.50x = 961,366,925.53
  5. Step 5: Solve for x
    x = 961,366,925.53/34,393.50
  6. Step 6: Final answer
    x = 27,951.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.