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Finding the Fourth Proportional to 7,072.40, 10,592.40 and 6,910.40

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Solution

The fourth proportional to 7,072.40, 10,592.40 and 6,910.40 is: 10,349.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.40 : 10,592.40 = 6,910.40 : x
  2. Step 2: Convert to fraction form
    7,072.40/10,592.40 = 6,910.40/x
  3. Step 3: Cross multiply
    7,072.40x = 10,592.40 × 6,910.40
  4. Step 4: Simplify right side
    7,072.40x = 73,197,720.96
  5. Step 5: Solve for x
    x = 73,197,720.96/7,072.40
  6. Step 6: Final answer
    x = 10,349.77

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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.