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Finding the Fourth Proportional to 61,134.63, 91,702.25 and 27,831.40

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Solution

The fourth proportional to 61,134.63, 91,702.25 and 27,831.40 is: 41,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,134.63 : 91,702.25 = 27,831.40 : x
  2. Step 2: Convert to fraction form
    61,134.63/91,702.25 = 27,831.40/x
  3. Step 3: Cross multiply
    61,134.63x = 91,702.25 × 27,831.40
  4. Step 4: Simplify right side
    61,134.63x = 2,552,202,065.10
  5. Step 5: Solve for x
    x = 2,552,202,065.10/61,134.63
  6. Step 6: Final answer
    x = 41,747.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.