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Finding the Fourth Proportional to 6,416.65, 9,640.38 and 6,062.61

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Solution

The fourth proportional to 6,416.65, 9,640.38 and 6,062.61 is: 9,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.65 : 9,640.38 = 6,062.61 : x
  2. Step 2: Convert to fraction form
    6,416.65/9,640.38 = 6,062.61/x
  3. Step 3: Cross multiply
    6,416.65x = 9,640.38 × 6,062.61
  4. Step 4: Simplify right side
    6,416.65x = 58,445,864.19
  5. Step 5: Solve for x
    x = 58,445,864.19/6,416.65
  6. Step 6: Final answer
    x = 9,108.48

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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.