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Finding the Fourth Proportional to 12,597.61, 18,896.43 and 5,664.01

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Solution

The fourth proportional to 12,597.61, 18,896.43 and 5,664.01 is: 8,496.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,597.61 : 18,896.43 = 5,664.01 : x
  2. Step 2: Convert to fraction form
    12,597.61/18,896.43 = 5,664.01/x
  3. Step 3: Cross multiply
    12,597.61x = 18,896.43 × 5,664.01
  4. Step 4: Simplify right side
    12,597.61x = 107,029,568.48
  5. Step 5: Solve for x
    x = 107,029,568.48/12,597.61
  6. Step 6: Final answer
    x = 8,496.02

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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.