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Finding the Fourth Proportional to 14,929.11, 20,602.67 and 8,214.98

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Solution

The fourth proportional to 14,929.11, 20,602.67 and 8,214.98 is: 11,336.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,929.11 : 20,602.67 = 8,214.98 : x
  2. Step 2: Convert to fraction form
    14,929.11/20,602.67 = 8,214.98/x
  3. Step 3: Cross multiply
    14,929.11x = 20,602.67 × 8,214.98
  4. Step 4: Simplify right side
    14,929.11x = 169,250,377.91
  5. Step 5: Solve for x
    x = 169,250,377.91/14,929.11
  6. Step 6: Final answer
    x = 11,336.94

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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.