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Finding the Fourth Proportional to 10,778.51, 14,872.10 and 6,301.39

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Solution

The fourth proportional to 10,778.51, 14,872.10 and 6,301.39 is: 8,694.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.51 : 14,872.10 = 6,301.39 : x
  2. Step 2: Convert to fraction form
    10,778.51/14,872.10 = 6,301.39/x
  3. Step 3: Cross multiply
    10,778.51x = 14,872.10 × 6,301.39
  4. Step 4: Simplify right side
    10,778.51x = 93,714,902.22
  5. Step 5: Solve for x
    x = 93,714,902.22/10,778.51
  6. Step 6: Final answer
    x = 8,694.61

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1.5x scale

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.