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Finding the Fourth Proportional to 18,607.68, 25,679.88 and 10,652.04

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Solution

The fourth proportional to 18,607.68, 25,679.88 and 10,652.04 is: 14,700.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.68 : 25,679.88 = 10,652.04 : x
  2. Step 2: Convert to fraction form
    18,607.68/25,679.88 = 10,652.04/x
  3. Step 3: Cross multiply
    18,607.68x = 25,679.88 × 10,652.04
  4. Step 4: Simplify right side
    18,607.68x = 273,543,108.96
  5. Step 5: Solve for x
    x = 273,543,108.96/18,607.68
  6. Step 6: Final answer
    x = 14,700.55

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Why These Related Problems?

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