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Finding the Fourth Proportional to 18,152.18, 27,239.18 and 7,763.94

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Solution

The fourth proportional to 18,152.18, 27,239.18 and 7,763.94 is: 11,650.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.18 : 27,239.18 = 7,763.94 : x
  2. Step 2: Convert to fraction form
    18,152.18/27,239.18 = 7,763.94/x
  3. Step 3: Cross multiply
    18,152.18x = 27,239.18 × 7,763.94
  4. Step 4: Simplify right side
    18,152.18x = 211,483,359.17
  5. Step 5: Solve for x
    x = 211,483,359.17/18,152.18
  6. Step 6: Final answer
    x = 11,650.58

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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.