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Finding the Fourth Proportional to 34,706.70, 47,895.17 and 18,791.15

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Solution

The fourth proportional to 34,706.70, 47,895.17 and 18,791.15 is: 25,931.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,706.70 : 47,895.17 = 18,791.15 : x
  2. Step 2: Convert to fraction form
    34,706.70/47,895.17 = 18,791.15/x
  3. Step 3: Cross multiply
    34,706.70x = 47,895.17 × 18,791.15
  4. Step 4: Simplify right side
    34,706.70x = 900,004,990.31
  5. Step 5: Solve for x
    x = 900,004,990.31/34,706.70
  6. Step 6: Final answer
    x = 25,931.74

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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.