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Finding the Fourth Proportional to 17,628.90, 26,443.35 and 5,940.90

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Solution

The fourth proportional to 17,628.90, 26,443.35 and 5,940.90 is: 8,911.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,628.90 : 26,443.35 = 5,940.90 : x
  2. Step 2: Convert to fraction form
    17,628.90/26,443.35 = 5,940.90/x
  3. Step 3: Cross multiply
    17,628.90x = 26,443.35 × 5,940.90
  4. Step 4: Simplify right side
    17,628.90x = 157,097,298.02
  5. Step 5: Solve for x
    x = 157,097,298.02/17,628.90
  6. Step 6: Final answer
    x = 8,911.35

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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.