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Finding the Fourth Proportional to 14,649.84, 20,217.60 and 8,363.52

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Solution

The fourth proportional to 14,649.84, 20,217.60 and 8,363.52 is: 11,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.84 : 20,217.60 = 8,363.52 : x
  2. Step 2: Convert to fraction form
    14,649.84/20,217.60 = 8,363.52/x
  3. Step 3: Cross multiply
    14,649.84x = 20,217.60 × 8,363.52
  4. Step 4: Simplify right side
    14,649.84x = 169,090,301.95
  5. Step 5: Solve for x
    x = 169,090,301.95/14,649.84
  6. Step 6: Final answer
    x = 11,542.13

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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.