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Finding the Fourth Proportional to 17,698.62, 26,530.65 and 9,890.22

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Solution

The fourth proportional to 17,698.62, 26,530.65 and 9,890.22 is: 14,825.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,698.62 : 26,530.65 = 9,890.22 : x
  2. Step 2: Convert to fraction form
    17,698.62/26,530.65 = 9,890.22/x
  3. Step 3: Cross multiply
    17,698.62x = 26,530.65 × 9,890.22
  4. Step 4: Simplify right side
    17,698.62x = 262,393,965.24
  5. Step 5: Solve for x
    x = 262,393,965.24/17,698.62
  6. Step 6: Final answer
    x = 14,825.67

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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.