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Finding the Fourth Proportional to 17,888.67, 26,824.23 and 5,406.30

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Solution

The fourth proportional to 17,888.67, 26,824.23 and 5,406.30 is: 8,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,888.67 : 26,824.23 = 5,406.30 : x
  2. Step 2: Convert to fraction form
    17,888.67/26,824.23 = 5,406.30/x
  3. Step 3: Cross multiply
    17,888.67x = 26,824.23 × 5,406.30
  4. Step 4: Simplify right side
    17,888.67x = 145,019,834.65
  5. Step 5: Solve for x
    x = 145,019,834.65/17,888.67
  6. Step 6: Final answer
    x = 8,106.80

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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.