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Finding the Fourth Proportional to 17,103.90, 25,619.40 and 14,916.90

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Solution

The fourth proportional to 17,103.90, 25,619.40 and 14,916.90 is: 22,343.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.90 : 25,619.40 = 14,916.90 : x
  2. Step 2: Convert to fraction form
    17,103.90/25,619.40 = 14,916.90/x
  3. Step 3: Cross multiply
    17,103.90x = 25,619.40 × 14,916.90
  4. Step 4: Simplify right side
    17,103.90x = 382,162,027.86
  5. Step 5: Solve for x
    x = 382,162,027.86/17,103.90
  6. Step 6: Final answer
    x = 22,343.56

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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.