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Finding the Fourth Proportional to 17,953.05, 26,930.75 and 14,659.05

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Solution

The fourth proportional to 17,953.05, 26,930.75 and 14,659.05 is: 21,989.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,953.05 : 26,930.75 = 14,659.05 : x
  2. Step 2: Convert to fraction form
    17,953.05/26,930.75 = 14,659.05/x
  3. Step 3: Cross multiply
    17,953.05x = 26,930.75 × 14,659.05
  4. Step 4: Simplify right side
    17,953.05x = 394,779,137.49
  5. Step 5: Solve for x
    x = 394,779,137.49/17,953.05
  6. Step 6: Final answer
    x = 21,989.53

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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.