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Finding the Fourth Proportional to 9,853.92, 14,778.72 and 2,929.68

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Solution

The fourth proportional to 9,853.92, 14,778.72 and 2,929.68 is: 4,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,853.92 : 14,778.72 = 2,929.68 : x
  2. Step 2: Convert to fraction form
    9,853.92/14,778.72 = 2,929.68/x
  3. Step 3: Cross multiply
    9,853.92x = 14,778.72 × 2,929.68
  4. Step 4: Simplify right side
    9,853.92x = 43,296,920.41
  5. Step 5: Solve for x
    x = 43,296,920.41/9,853.92
  6. Step 6: Final answer
    x = 4,393.88

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1.5x scale

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.