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Finding the Fourth Proportional to 13,716.48, 20,474.88 and 12,410.88

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Solution

The fourth proportional to 13,716.48, 20,474.88 and 12,410.88 is: 18,525.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.48 : 20,474.88 = 12,410.88 : x
  2. Step 2: Convert to fraction form
    13,716.48/20,474.88 = 12,410.88/x
  3. Step 3: Cross multiply
    13,716.48x = 20,474.88 × 12,410.88
  4. Step 4: Simplify right side
    13,716.48x = 254,111,278.69
  5. Step 5: Solve for x
    x = 254,111,278.69/13,716.48
  6. Step 6: Final answer
    x = 18,525.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.