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Finding the Fourth Proportional to 11,855.65, 17,777.56 and 7,353.17

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Solution

The fourth proportional to 11,855.65, 17,777.56 and 7,353.17 is: 11,026.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.65 : 17,777.56 = 7,353.17 : x
  2. Step 2: Convert to fraction form
    11,855.65/17,777.56 = 7,353.17/x
  3. Step 3: Cross multiply
    11,855.65x = 17,777.56 × 7,353.17
  4. Step 4: Simplify right side
    11,855.65x = 130,721,420.87
  5. Step 5: Solve for x
    x = 130,721,420.87/11,855.65
  6. Step 6: Final answer
    x = 11,026.09

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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.