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Finding the Fourth Proportional to 64,737.19, 89,333.79 and 35,659.86

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Solution

The fourth proportional to 64,737.19, 89,333.79 and 35,659.86 is: 49,208.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,737.19 : 89,333.79 = 35,659.86 : x
  2. Step 2: Convert to fraction form
    64,737.19/89,333.79 = 35,659.86/x
  3. Step 3: Cross multiply
    64,737.19x = 89,333.79 × 35,659.86
  4. Step 4: Simplify right side
    64,737.19x = 3,185,630,101.57
  5. Step 5: Solve for x
    x = 3,185,630,101.57/64,737.19
  6. Step 6: Final answer
    x = 49,208.66

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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.