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Finding the Fourth Proportional to 7,560.78, 10,431.11 and 4,575.53

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Solution

The fourth proportional to 7,560.78, 10,431.11 and 4,575.53 is: 6,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,560.78 : 10,431.11 = 4,575.53 : x
  2. Step 2: Convert to fraction form
    7,560.78/10,431.11 = 4,575.53/x
  3. Step 3: Cross multiply
    7,560.78x = 10,431.11 × 4,575.53
  4. Step 4: Simplify right side
    7,560.78x = 47,727,816.02
  5. Step 5: Solve for x
    x = 47,727,816.02/7,560.78
  6. Step 6: Final answer
    x = 6,312.55

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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.