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Finding the Fourth Proportional to 61,960.92, 92,948.12 and 19,831.08

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Solution

The fourth proportional to 61,960.92, 92,948.12 and 19,831.08 is: 29,748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,960.92 : 92,948.12 = 19,831.08 : x
  2. Step 2: Convert to fraction form
    61,960.92/92,948.12 = 19,831.08/x
  3. Step 3: Cross multiply
    61,960.92x = 92,948.12 × 19,831.08
  4. Step 4: Simplify right side
    61,960.92x = 1,843,261,603.57
  5. Step 5: Solve for x
    x = 1,843,261,603.57/61,960.92
  6. Step 6: Final answer
    x = 29,748.78

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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.