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Finding the Fourth Proportional to 19,892.95, 29,844.06 and 7,413.01

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Solution

The fourth proportional to 19,892.95, 29,844.06 and 7,413.01 is: 11,121.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,892.95 : 29,844.06 = 7,413.01 : x
  2. Step 2: Convert to fraction form
    19,892.95/29,844.06 = 7,413.01/x
  3. Step 3: Cross multiply
    19,892.95x = 29,844.06 × 7,413.01
  4. Step 4: Simplify right side
    19,892.95x = 221,234,315.22
  5. Step 5: Solve for x
    x = 221,234,315.22/19,892.95
  6. Step 6: Final answer
    x = 11,121.24

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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.