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Finding the Fourth Proportional to 17,953.71, 26,930.58 and 8,591.53

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Solution

The fourth proportional to 17,953.71, 26,930.58 and 8,591.53 is: 12,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,953.71 : 26,930.58 = 8,591.53 : x
  2. Step 2: Convert to fraction form
    17,953.71/26,930.58 = 8,591.53/x
  3. Step 3: Cross multiply
    17,953.71x = 26,930.58 × 8,591.53
  4. Step 4: Simplify right side
    17,953.71x = 231,374,885.99
  5. Step 5: Solve for x
    x = 231,374,885.99/17,953.71
  6. Step 6: Final answer
    x = 12,887.30

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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.