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Finding the Fourth Proportional to 18,549.99, 27,823.77 and 8,691.48

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Solution

The fourth proportional to 18,549.99, 27,823.77 and 8,691.48 is: 13,036.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.99 : 27,823.77 = 8,691.48 : x
  2. Step 2: Convert to fraction form
    18,549.99/27,823.77 = 8,691.48/x
  3. Step 3: Cross multiply
    18,549.99x = 27,823.77 × 8,691.48
  4. Step 4: Simplify right side
    18,549.99x = 241,829,740.48
  5. Step 5: Solve for x
    x = 241,829,740.48/18,549.99
  6. Step 6: Final answer
    x = 13,036.65

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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.