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Finding the Fourth Proportional to 14,841.71, 20,479.68 and 11,824.48

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Solution

The fourth proportional to 14,841.71, 20,479.68 and 11,824.48 is: 16,316.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,841.71 : 20,479.68 = 11,824.48 : x
  2. Step 2: Convert to fraction form
    14,841.71/20,479.68 = 11,824.48/x
  3. Step 3: Cross multiply
    14,841.71x = 20,479.68 × 11,824.48
  4. Step 4: Simplify right side
    14,841.71x = 242,161,551.45
  5. Step 5: Solve for x
    x = 242,161,551.45/14,841.71
  6. Step 6: Final answer
    x = 16,316.29

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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.