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Finding the Fourth Proportional to 13,411.17, 20,117.93 and 5,514.17

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Solution

The fourth proportional to 13,411.17, 20,117.93 and 5,514.17 is: 8,271.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.17 : 20,117.93 = 5,514.17 : x
  2. Step 2: Convert to fraction form
    13,411.17/20,117.93 = 5,514.17/x
  3. Step 3: Cross multiply
    13,411.17x = 20,117.93 × 5,514.17
  4. Step 4: Simplify right side
    13,411.17x = 110,933,557.91
  5. Step 5: Solve for x
    x = 110,933,557.91/13,411.17
  6. Step 6: Final answer
    x = 8,271.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.