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Finding the Fourth Proportional to 19,365.13, 29,059.98 and 8,271.89

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Solution

The fourth proportional to 19,365.13, 29,059.98 and 8,271.89 is: 12,413.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,365.13 : 29,059.98 = 8,271.89 : x
  2. Step 2: Convert to fraction form
    19,365.13/29,059.98 = 8,271.89/x
  3. Step 3: Cross multiply
    19,365.13x = 29,059.98 × 8,271.89
  4. Step 4: Simplify right side
    19,365.13x = 240,380,957.96
  5. Step 5: Solve for x
    x = 240,380,957.96/19,365.13
  6. Step 6: Final answer
    x = 12,413.08

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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.