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Finding the Fourth Proportional to 12,403.28, 18,597.62 and 5,007.98

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Solution

The fourth proportional to 12,403.28, 18,597.62 and 5,007.98 is: 7,509.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.28 : 18,597.62 = 5,007.98 : x
  2. Step 2: Convert to fraction form
    12,403.28/18,597.62 = 5,007.98/x
  3. Step 3: Cross multiply
    12,403.28x = 18,597.62 × 5,007.98
  4. Step 4: Simplify right side
    12,403.28x = 93,136,509.01
  5. Step 5: Solve for x
    x = 93,136,509.01/12,403.28
  6. Step 6: Final answer
    x = 7,509.02

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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.