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Finding the Fourth Proportional to 64,661.32, 96,992.10 and 17,914.32

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Solution

The fourth proportional to 64,661.32, 96,992.10 and 17,914.32 is: 26,871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,661.32 : 96,992.10 = 17,914.32 : x
  2. Step 2: Convert to fraction form
    64,661.32/96,992.10 = 17,914.32/x
  3. Step 3: Cross multiply
    64,661.32x = 96,992.10 × 17,914.32
  4. Step 4: Simplify right side
    64,661.32x = 1,737,547,516.87
  5. Step 5: Solve for x
    x = 1,737,547,516.87/64,661.32
  6. Step 6: Final answer
    x = 26,871.51

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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.