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Finding the Fourth Proportional to 14,392.91, 21,604.08 and 11,886.11

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Solution

The fourth proportional to 14,392.91, 21,604.08 and 11,886.11 is: 17,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,392.91 : 21,604.08 = 11,886.11 : x
  2. Step 2: Convert to fraction form
    14,392.91/21,604.08 = 11,886.11/x
  3. Step 3: Cross multiply
    14,392.91x = 21,604.08 × 11,886.11
  4. Step 4: Simplify right side
    14,392.91x = 256,788,471.33
  5. Step 5: Solve for x
    x = 256,788,471.33/14,392.91
  6. Step 6: Final answer
    x = 17,841.32

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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.