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Finding the Fourth Proportional to 13,614.88, 20,411.16 and 4,844.80

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Solution

The fourth proportional to 13,614.88, 20,411.16 and 4,844.80 is: 7,263.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.88 : 20,411.16 = 4,844.80 : x
  2. Step 2: Convert to fraction form
    13,614.88/20,411.16 = 4,844.80/x
  3. Step 3: Cross multiply
    13,614.88x = 20,411.16 × 4,844.80
  4. Step 4: Simplify right side
    13,614.88x = 98,887,987.97
  5. Step 5: Solve for x
    x = 98,887,987.97/13,614.88
  6. Step 6: Final answer
    x = 7,263.23

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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.