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Finding the Fourth Proportional to 17,931.96, 26,888.65 and 8,062.81

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Solution

The fourth proportional to 17,931.96, 26,888.65 and 8,062.81 is: 12,090.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,931.96 : 26,888.65 = 8,062.81 : x
  2. Step 2: Convert to fraction form
    17,931.96/26,888.65 = 8,062.81/x
  3. Step 3: Cross multiply
    17,931.96x = 26,888.65 × 8,062.81
  4. Step 4: Simplify right side
    17,931.96x = 216,797,988.73
  5. Step 5: Solve for x
    x = 216,797,988.73/17,931.96
  6. Step 6: Final answer
    x = 12,090.03

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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.