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Finding the Fourth Proportional to 12,375.96, 18,564.01 and 4,056.32

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Solution

The fourth proportional to 12,375.96, 18,564.01 and 4,056.32 is: 6,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.96 : 18,564.01 = 4,056.32 : x
  2. Step 2: Convert to fraction form
    12,375.96/18,564.01 = 4,056.32/x
  3. Step 3: Cross multiply
    12,375.96x = 18,564.01 × 4,056.32
  4. Step 4: Simplify right side
    12,375.96x = 75,301,462.08
  5. Step 5: Solve for x
    x = 75,301,462.08/12,375.96
  6. Step 6: Final answer
    x = 6,084.49

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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.