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Finding the Fourth Proportional to 18,269.66, 27,406.23 and 5,122.00

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Solution

The fourth proportional to 18,269.66, 27,406.23 and 5,122.00 is: 7,683.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.66 : 27,406.23 = 5,122.00 : x
  2. Step 2: Convert to fraction form
    18,269.66/27,406.23 = 5,122.00/x
  3. Step 3: Cross multiply
    18,269.66x = 27,406.23 × 5,122.00
  4. Step 4: Simplify right side
    18,269.66x = 140,374,573.03
  5. Step 5: Solve for x
    x = 140,374,573.03/18,269.66
  6. Step 6: Final answer
    x = 7,683.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.