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Finding the Fourth Proportional to 18,810.62, 26,077.50 and 17,811.92

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Solution

The fourth proportional to 18,810.62, 26,077.50 and 17,811.92 is: 24,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.62 : 26,077.50 = 17,811.92 : x
  2. Step 2: Convert to fraction form
    18,810.62/26,077.50 = 17,811.92/x
  3. Step 3: Cross multiply
    18,810.62x = 26,077.50 × 17,811.92
  4. Step 4: Simplify right side
    18,810.62x = 464,490,343.80
  5. Step 5: Solve for x
    x = 464,490,343.80/18,810.62
  6. Step 6: Final answer
    x = 24,692.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.