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Finding the Fourth Proportional to 18,573.48, 27,859.10 and 8,698.92

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Solution

The fourth proportional to 18,573.48, 27,859.10 and 8,698.92 is: 13,047.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.48 : 27,859.10 = 8,698.92 : x
  2. Step 2: Convert to fraction form
    18,573.48/27,859.10 = 8,698.92/x
  3. Step 3: Cross multiply
    18,573.48x = 27,859.10 × 8,698.92
  4. Step 4: Simplify right side
    18,573.48x = 242,344,082.17
  5. Step 5: Solve for x
    x = 242,344,082.17/18,573.48
  6. Step 6: Final answer
    x = 13,047.86

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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.