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Finding the Fourth Proportional to 13,710.14, 20,560.96 and 4,943.92

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Solution

The fourth proportional to 13,710.14, 20,560.96 and 4,943.92 is: 7,414.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.14 : 20,560.96 = 4,943.92 : x
  2. Step 2: Convert to fraction form
    13,710.14/20,560.96 = 4,943.92/x
  3. Step 3: Cross multiply
    13,710.14x = 20,560.96 × 4,943.92
  4. Step 4: Simplify right side
    13,710.14x = 101,651,741.36
  5. Step 5: Solve for x
    x = 101,651,741.36/13,710.14
  6. Step 6: Final answer
    x = 7,414.35

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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.