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Finding the Fourth Proportional to 29,289.92, 40,413.76 and 17,356.96

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Solution

The fourth proportional to 29,289.92, 40,413.76 and 17,356.96 is: 23,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,289.92 : 40,413.76 = 17,356.96 : x
  2. Step 2: Convert to fraction form
    29,289.92/40,413.76 = 17,356.96/x
  3. Step 3: Cross multiply
    29,289.92x = 40,413.76 × 17,356.96
  4. Step 4: Simplify right side
    29,289.92x = 701,460,015.77
  5. Step 5: Solve for x
    x = 701,460,015.77/29,289.92
  6. Step 6: Final answer
    x = 23,948.85

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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.