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Finding the Fourth Proportional to 14,879.97, 20,534.18 and 8,592.21

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Solution

The fourth proportional to 14,879.97, 20,534.18 and 8,592.21 is: 11,857.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,879.97 : 20,534.18 = 8,592.21 : x
  2. Step 2: Convert to fraction form
    14,879.97/20,534.18 = 8,592.21/x
  3. Step 3: Cross multiply
    14,879.97x = 20,534.18 × 8,592.21
  4. Step 4: Simplify right side
    14,879.97x = 176,433,986.74
  5. Step 5: Solve for x
    x = 176,433,986.74/14,879.97
  6. Step 6: Final answer
    x = 11,857.15

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Double scale
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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.