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Finding the Fourth Proportional to 62,981.16, 86,910.03 and 34,686.84

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Solution

The fourth proportional to 62,981.16, 86,910.03 and 34,686.84 is: 47,865.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,981.16 : 86,910.03 = 34,686.84 : x
  2. Step 2: Convert to fraction form
    62,981.16/86,910.03 = 34,686.84/x
  3. Step 3: Cross multiply
    62,981.16x = 86,910.03 × 34,686.84
  4. Step 4: Simplify right side
    62,981.16x = 3,014,634,305.01
  5. Step 5: Solve for x
    x = 3,014,634,305.01/62,981.16
  6. Step 6: Final answer
    x = 47,865.65

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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.