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Finding the Fourth Proportional to 35,809.66, 49,413.54 and 20,699.92

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Solution

The fourth proportional to 35,809.66, 49,413.54 and 20,699.92 is: 28,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,809.66 : 49,413.54 = 20,699.92 : x
  2. Step 2: Convert to fraction form
    35,809.66/49,413.54 = 20,699.92/x
  3. Step 3: Cross multiply
    35,809.66x = 49,413.54 × 20,699.92
  4. Step 4: Simplify right side
    35,809.66x = 1,022,856,324.92
  5. Step 5: Solve for x
    x = 1,022,856,324.92/35,809.66
  6. Step 6: Final answer
    x = 28,563.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.