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Finding the Fourth Proportional to 26,955.30, 40,469.40 and 17,113.80

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Solution

The fourth proportional to 26,955.30, 40,469.40 and 17,113.80 is: 25,693.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,955.30 : 40,469.40 = 17,113.80 : x
  2. Step 2: Convert to fraction form
    26,955.30/40,469.40 = 17,113.80/x
  3. Step 3: Cross multiply
    26,955.30x = 40,469.40 × 17,113.80
  4. Step 4: Simplify right side
    26,955.30x = 692,585,217.72
  5. Step 5: Solve for x
    x = 692,585,217.72/26,955.30
  6. Step 6: Final answer
    x = 25,693.84

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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.