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Finding the Fourth Proportional to 17,064.80, 25,568.40 and 11,218.40

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Solution

The fourth proportional to 17,064.80, 25,568.40 and 11,218.40 is: 16,808.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,064.80 : 25,568.40 = 11,218.40 : x
  2. Step 2: Convert to fraction form
    17,064.80/25,568.40 = 11,218.40/x
  3. Step 3: Cross multiply
    17,064.80x = 25,568.40 × 11,218.40
  4. Step 4: Simplify right side
    17,064.80x = 286,836,538.56
  5. Step 5: Solve for x
    x = 286,836,538.56/17,064.80
  6. Step 6: Final answer
    x = 16,808.67

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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.