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Finding the Fourth Proportional to 17,940.66, 26,911.95 and 5,459.73

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Solution

The fourth proportional to 17,940.66, 26,911.95 and 5,459.73 is: 8,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940.66 : 26,911.95 = 5,459.73 : x
  2. Step 2: Convert to fraction form
    17,940.66/26,911.95 = 5,459.73/x
  3. Step 3: Cross multiply
    17,940.66x = 26,911.95 × 5,459.73
  4. Step 4: Simplify right side
    17,940.66x = 146,931,980.77
  5. Step 5: Solve for x
    x = 146,931,980.77/17,940.66
  6. Step 6: Final answer
    x = 8,189.89

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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.