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Finding the Fourth Proportional to 15,662.42, 21,614.13 and 8,588.99

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Solution

The fourth proportional to 15,662.42, 21,614.13 and 8,588.99 is: 11,852.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,662.42 : 21,614.13 = 8,588.99 : x
  2. Step 2: Convert to fraction form
    15,662.42/21,614.13 = 8,588.99/x
  3. Step 3: Cross multiply
    15,662.42x = 21,614.13 × 8,588.99
  4. Step 4: Simplify right side
    15,662.42x = 185,643,600.46
  5. Step 5: Solve for x
    x = 185,643,600.46/15,662.42
  6. Step 6: Final answer
    x = 11,852.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.