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Finding the Fourth Proportional to 17,954.76, 26,931.06 and 8,090.04

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Solution

The fourth proportional to 17,954.76, 26,931.06 and 8,090.04 is: 12,134.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,954.76 : 26,931.06 = 8,090.04 : x
  2. Step 2: Convert to fraction form
    17,954.76/26,931.06 = 8,090.04/x
  3. Step 3: Cross multiply
    17,954.76x = 26,931.06 × 8,090.04
  4. Step 4: Simplify right side
    17,954.76x = 217,873,352.64
  5. Step 5: Solve for x
    x = 217,873,352.64/17,954.76
  6. Step 6: Final answer
    x = 12,134.57

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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.