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Finding the Fourth Proportional to 18,586.53, 27,879.45 and 7,492.92

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Solution

The fourth proportional to 18,586.53, 27,879.45 and 7,492.92 is: 11,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.53 : 27,879.45 = 7,492.92 : x
  2. Step 2: Convert to fraction form
    18,586.53/27,879.45 = 7,492.92/x
  3. Step 3: Cross multiply
    18,586.53x = 27,879.45 × 7,492.92
  4. Step 4: Simplify right side
    18,586.53x = 208,898,488.49
  5. Step 5: Solve for x
    x = 208,898,488.49/18,586.53
  6. Step 6: Final answer
    x = 11,239.24

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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.