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Finding the Fourth Proportional to 17,168.40, 25,768.80 and 10,607.40

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Solution

The fourth proportional to 17,168.40, 25,768.80 and 10,607.40 is: 15,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,168.40 : 25,768.80 = 10,607.40 : x
  2. Step 2: Convert to fraction form
    17,168.40/25,768.80 = 10,607.40/x
  3. Step 3: Cross multiply
    17,168.40x = 25,768.80 × 10,607.40
  4. Step 4: Simplify right side
    17,168.40x = 273,339,969.12
  5. Step 5: Solve for x
    x = 273,339,969.12/17,168.40
  6. Step 6: Final answer
    x = 15,921.11

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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.