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Finding the Fourth Proportional to 14,554.21, 20,079.91 and 8,886.91

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Solution

The fourth proportional to 14,554.21, 20,079.91 and 8,886.91 is: 12,260.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,554.21 : 20,079.91 = 8,886.91 : x
  2. Step 2: Convert to fraction form
    14,554.21/20,079.91 = 8,886.91/x
  3. Step 3: Cross multiply
    14,554.21x = 20,079.91 × 8,886.91
  4. Step 4: Simplify right side
    14,554.21x = 178,448,352.98
  5. Step 5: Solve for x
    x = 178,448,352.98/14,554.21
  6. Step 6: Final answer
    x = 12,260.94

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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.