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Finding the Fourth Proportional to 17,309.70, 25,960.95 and 7,449.30

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Solution

The fourth proportional to 17,309.70, 25,960.95 and 7,449.30 is: 11,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,309.70 : 25,960.95 = 7,449.30 : x
  2. Step 2: Convert to fraction form
    17,309.70/25,960.95 = 7,449.30/x
  3. Step 3: Cross multiply
    17,309.70x = 25,960.95 × 7,449.30
  4. Step 4: Simplify right side
    17,309.70x = 193,390,904.84
  5. Step 5: Solve for x
    x = 193,390,904.84/17,309.70
  6. Step 6: Final answer
    x = 11,172.40

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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.