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Finding the Fourth Proportional to 12,953.44, 19,449.60 and 7,413.04

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Solution

The fourth proportional to 12,953.44, 19,449.60 and 7,413.04 is: 11,130.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.44 : 19,449.60 = 7,413.04 : x
  2. Step 2: Convert to fraction form
    12,953.44/19,449.60 = 7,413.04/x
  3. Step 3: Cross multiply
    12,953.44x = 19,449.60 × 7,413.04
  4. Step 4: Simplify right side
    12,953.44x = 144,180,662.78
  5. Step 5: Solve for x
    x = 144,180,662.78/12,953.44
  6. Step 6: Final answer
    x = 11,130.69

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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.