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Finding the Fourth Proportional to 18,423.66, 27,635.49 and 4,572.66

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Solution

The fourth proportional to 18,423.66, 27,635.49 and 4,572.66 is: 6,858.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.66 : 27,635.49 = 4,572.66 : x
  2. Step 2: Convert to fraction form
    18,423.66/27,635.49 = 4,572.66/x
  3. Step 3: Cross multiply
    18,423.66x = 27,635.49 × 4,572.66
  4. Step 4: Simplify right side
    18,423.66x = 126,367,699.70
  5. Step 5: Solve for x
    x = 126,367,699.70/18,423.66
  6. Step 6: Final answer
    x = 6,858.99

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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.