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Finding the Fourth Proportional to 18,659.01, 27,988.08 and 7,562.73

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Solution

The fourth proportional to 18,659.01, 27,988.08 and 7,562.73 is: 11,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659.01 : 27,988.08 = 7,562.73 : x
  2. Step 2: Convert to fraction form
    18,659.01/27,988.08 = 7,562.73/x
  3. Step 3: Cross multiply
    18,659.01x = 27,988.08 × 7,562.73
  4. Step 4: Simplify right side
    18,659.01x = 211,666,292.26
  5. Step 5: Solve for x
    x = 211,666,292.26/18,659.01
  6. Step 6: Final answer
    x = 11,343.92

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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.