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Finding the Fourth Proportional to 13,952.17, 20,929.20 and 4,718.17

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Solution

The fourth proportional to 13,952.17, 20,929.20 and 4,718.17 is: 7,077.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.17 : 20,929.20 = 4,718.17 : x
  2. Step 2: Convert to fraction form
    13,952.17/20,929.20 = 4,718.17/x
  3. Step 3: Cross multiply
    13,952.17x = 20,929.20 × 4,718.17
  4. Step 4: Simplify right side
    13,952.17x = 98,747,523.56
  5. Step 5: Solve for x
    x = 98,747,523.56/13,952.17
  6. Step 6: Final answer
    x = 7,077.57

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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.