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Finding the Fourth Proportional to 64,881.93, 89,521.74 and 36,582.15

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Solution

The fourth proportional to 64,881.93, 89,521.74 and 36,582.15 is: 50,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,881.93 : 89,521.74 = 36,582.15 : x
  2. Step 2: Convert to fraction form
    64,881.93/89,521.74 = 36,582.15/x
  3. Step 3: Cross multiply
    64,881.93x = 89,521.74 × 36,582.15
  4. Step 4: Simplify right side
    64,881.93x = 3,274,897,720.94
  5. Step 5: Solve for x
    x = 3,274,897,720.94/64,881.93
  6. Step 6: Final answer
    x = 50,474.73

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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.