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Finding the Fourth Proportional to 14,841.64, 20,479.86 and 8,872.48

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Solution

The fourth proportional to 14,841.64, 20,479.86 and 8,872.48 is: 12,243.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,841.64 : 20,479.86 = 8,872.48 : x
  2. Step 2: Convert to fraction form
    14,841.64/20,479.86 = 8,872.48/x
  3. Step 3: Cross multiply
    14,841.64x = 20,479.86 × 8,872.48
  4. Step 4: Simplify right side
    14,841.64x = 181,707,148.25
  5. Step 5: Solve for x
    x = 181,707,148.25/14,841.64
  6. Step 6: Final answer
    x = 12,243.06

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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.