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Finding the Fourth Proportional to 76,792.86, 105,886.34 and 62,413.34

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Solution

The fourth proportional to 76,792.86, 105,886.34 and 62,413.34 is: 86,059.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,792.86 : 105,886.34 = 62,413.34 : x
  2. Step 2: Convert to fraction form
    76,792.86/105,886.34 = 62,413.34/x
  3. Step 3: Cross multiply
    76,792.86x = 105,886.34 × 62,413.34
  4. Step 4: Simplify right side
    76,792.86x = 6,608,719,532.33
  5. Step 5: Solve for x
    x = 6,608,719,532.33/76,792.86
  6. Step 6: Final answer
    x = 86,059.04

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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.