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Finding the Fourth Proportional to 64,942.84, 97,335.84 and 31,612.96

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Solution

The fourth proportional to 64,942.84, 97,335.84 and 31,612.96 is: 47,381.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,942.84 : 97,335.84 = 31,612.96 : x
  2. Step 2: Convert to fraction form
    64,942.84/97,335.84 = 31,612.96/x
  3. Step 3: Cross multiply
    64,942.84x = 97,335.84 × 31,612.96
  4. Step 4: Simplify right side
    64,942.84x = 3,077,074,016.49
  5. Step 5: Solve for x
    x = 3,077,074,016.49/64,942.84
  6. Step 6: Final answer
    x = 47,381.27

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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.