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Finding the Fourth Proportional to 63,808.51, 95,717.18 and 21,671.40

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Solution

The fourth proportional to 63,808.51, 95,717.18 and 21,671.40 is: 32,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,808.51 : 95,717.18 = 21,671.40 : x
  2. Step 2: Convert to fraction form
    63,808.51/95,717.18 = 21,671.40/x
  3. Step 3: Cross multiply
    63,808.51x = 95,717.18 × 21,671.40
  4. Step 4: Simplify right side
    63,808.51x = 2,074,325,294.65
  5. Step 5: Solve for x
    x = 2,074,325,294.65/63,808.51
  6. Step 6: Final answer
    x = 32,508.60

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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.