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Finding the Fourth Proportional to 66,628.96, 91,946.88 and 36,413.92

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Solution

The fourth proportional to 66,628.96, 91,946.88 and 36,413.92 is: 50,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,628.96 : 91,946.88 = 36,413.92 : x
  2. Step 2: Convert to fraction form
    66,628.96/91,946.88 = 36,413.92/x
  3. Step 3: Cross multiply
    66,628.96x = 91,946.88 × 36,413.92
  4. Step 4: Simplify right side
    66,628.96x = 3,348,146,332.57
  5. Step 5: Solve for x
    x = 3,348,146,332.57/66,628.96
  6. Step 6: Final answer
    x = 50,250.62

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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.