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Finding the Fourth Proportional to 18,310.99, 25,269.15 and 9,927.49

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Solution

The fourth proportional to 18,310.99, 25,269.15 and 9,927.49 is: 13,699.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.99 : 25,269.15 = 9,927.49 : x
  2. Step 2: Convert to fraction form
    18,310.99/25,269.15 = 9,927.49/x
  3. Step 3: Cross multiply
    18,310.99x = 25,269.15 × 9,927.49
  4. Step 4: Simplify right side
    18,310.99x = 250,859,233.93
  5. Step 5: Solve for x
    x = 250,859,233.93/18,310.99
  6. Step 6: Final answer
    x = 13,699.93

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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.