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Finding the Fourth Proportional to 17,748.99, 26,622.88 and 7,215.89

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Solution

The fourth proportional to 17,748.99, 26,622.88 and 7,215.89 is: 10,823.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,748.99 : 26,622.88 = 7,215.89 : x
  2. Step 2: Convert to fraction form
    17,748.99/26,622.88 = 7,215.89/x
  3. Step 3: Cross multiply
    17,748.99x = 26,622.88 × 7,215.89
  4. Step 4: Simplify right side
    17,748.99x = 192,107,622.41
  5. Step 5: Solve for x
    x = 192,107,622.41/17,748.99
  6. Step 6: Final answer
    x = 10,823.58

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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.