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Finding the Fourth Proportional to 10,375.58, 15,567.10 and 5,375.56

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Solution

The fourth proportional to 10,375.58, 15,567.10 and 5,375.56 is: 8,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,375.58 : 15,567.10 = 5,375.56 : x
  2. Step 2: Convert to fraction form
    10,375.58/15,567.10 = 5,375.56/x
  3. Step 3: Cross multiply
    10,375.58x = 15,567.10 × 5,375.56
  4. Step 4: Simplify right side
    10,375.58x = 83,681,827.72
  5. Step 5: Solve for x
    x = 83,681,827.72/10,375.58
  6. Step 6: Final answer
    x = 8,065.27

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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.