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Finding the Fourth Proportional to 14,841.88, 20,479.36 and 8,468.49

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Solution

The fourth proportional to 14,841.88, 20,479.36 and 8,468.49 is: 11,685.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,841.88 : 20,479.36 = 8,468.49 : x
  2. Step 2: Convert to fraction form
    14,841.88/20,479.36 = 8,468.49/x
  3. Step 3: Cross multiply
    14,841.88x = 20,479.36 × 8,468.49
  4. Step 4: Simplify right side
    14,841.88x = 173,429,159.06
  5. Step 5: Solve for x
    x = 173,429,159.06/14,841.88
  6. Step 6: Final answer
    x = 11,685.12

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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.