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Finding the Fourth Proportional to 61,138.73, 84,369.70 and 37,256.69

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Solution

The fourth proportional to 61,138.73, 84,369.70 and 37,256.69 is: 51,413.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,138.73 : 84,369.70 = 37,256.69 : x
  2. Step 2: Convert to fraction form
    61,138.73/84,369.70 = 37,256.69/x
  3. Step 3: Cross multiply
    61,138.73x = 84,369.70 × 37,256.69
  4. Step 4: Simplify right side
    61,138.73x = 3,143,336,015.79
  5. Step 5: Solve for x
    x = 3,143,336,015.79/61,138.73
  6. Step 6: Final answer
    x = 51,413.17

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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.