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Finding the Fourth Proportional to 14,542.71, 20,068.92 and 8,255.10

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Solution

The fourth proportional to 14,542.71, 20,068.92 and 8,255.10 is: 11,392.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,542.71 : 20,068.92 = 8,255.10 : x
  2. Step 2: Convert to fraction form
    14,542.71/20,068.92 = 8,255.10/x
  3. Step 3: Cross multiply
    14,542.71x = 20,068.92 × 8,255.10
  4. Step 4: Simplify right side
    14,542.71x = 165,670,941.49
  5. Step 5: Solve for x
    x = 165,670,941.49/14,542.71
  6. Step 6: Final answer
    x = 11,392.03

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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.