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Finding the Fourth Proportional to 34,909.31, 48,175.05 and 18,993.87

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Solution

The fourth proportional to 34,909.31, 48,175.05 and 18,993.87 is: 26,211.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,909.31 : 48,175.05 = 18,993.87 : x
  2. Step 2: Convert to fraction form
    34,909.31/48,175.05 = 18,993.87/x
  3. Step 3: Cross multiply
    34,909.31x = 48,175.05 × 18,993.87
  4. Step 4: Simplify right side
    34,909.31x = 915,030,636.94
  5. Step 5: Solve for x
    x = 915,030,636.94/34,909.31
  6. Step 6: Final answer
    x = 26,211.65

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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.