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Finding the Fourth Proportional to 34,909.70, 48,175.50 and 18,994.14

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Solution

The fourth proportional to 34,909.70, 48,175.50 and 18,994.14 is: 26,211.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,909.70 : 48,175.50 = 18,994.14 : x
  2. Step 2: Convert to fraction form
    34,909.70/48,175.50 = 18,994.14/x
  3. Step 3: Cross multiply
    34,909.70x = 48,175.50 × 18,994.14
  4. Step 4: Simplify right side
    34,909.70x = 915,052,191.57
  5. Step 5: Solve for x
    x = 915,052,191.57/34,909.70
  6. Step 6: Final answer
    x = 26,211.98

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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.