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Finding the Fourth Proportional to 14,273.80, 21,413.94 and 7,699.84

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Solution

The fourth proportional to 14,273.80, 21,413.94 and 7,699.84 is: 11,551.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.80 : 21,413.94 = 7,699.84 : x
  2. Step 2: Convert to fraction form
    14,273.80/21,413.94 = 7,699.84/x
  3. Step 3: Cross multiply
    14,273.80x = 21,413.94 × 7,699.84
  4. Step 4: Simplify right side
    14,273.80x = 164,883,911.77
  5. Step 5: Solve for x
    x = 164,883,911.77/14,273.80
  6. Step 6: Final answer
    x = 11,551.51

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1.5x scale

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.