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Finding the Fourth Proportional to 64,902.58, 89,569.74 and 36,607.66

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Solution

The fourth proportional to 64,902.58, 89,569.74 and 36,607.66 is: 50,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,902.58 : 89,569.74 = 36,607.66 : x
  2. Step 2: Convert to fraction form
    64,902.58/89,569.74 = 36,607.66/x
  3. Step 3: Cross multiply
    64,902.58x = 89,569.74 × 36,607.66
  4. Step 4: Simplify right side
    64,902.58x = 3,278,938,588.21
  5. Step 5: Solve for x
    x = 3,278,938,588.21/64,902.58
  6. Step 6: Final answer
    x = 50,520.93

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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.