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Finding the Fourth Proportional to 28,007.68, 42,012.24 and 9,552.64

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Solution

The fourth proportional to 28,007.68, 42,012.24 and 9,552.64 is: 14,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.68 : 42,012.24 = 9,552.64 : x
  2. Step 2: Convert to fraction form
    28,007.68/42,012.24 = 9,552.64/x
  3. Step 3: Cross multiply
    28,007.68x = 42,012.24 × 9,552.64
  4. Step 4: Simplify right side
    28,007.68x = 401,327,804.31
  5. Step 5: Solve for x
    x = 401,327,804.31/28,007.68
  6. Step 6: Final answer
    x = 14,329.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.