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Finding the Fourth Proportional to 18,156.01, 27,224.30 and 7,762.09

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Solution

The fourth proportional to 18,156.01, 27,224.30 and 7,762.09 is: 11,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.01 : 27,224.30 = 7,762.09 : x
  2. Step 2: Convert to fraction form
    18,156.01/27,224.30 = 7,762.09/x
  3. Step 3: Cross multiply
    18,156.01x = 27,224.30 × 7,762.09
  4. Step 4: Simplify right side
    18,156.01x = 211,317,427.98
  5. Step 5: Solve for x
    x = 211,317,427.98/18,156.01
  6. Step 6: Final answer
    x = 11,638.98

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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.