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Finding the Fourth Proportional to 6,270.72, 9,406.72 and 6,245.12

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Solution

The fourth proportional to 6,270.72, 9,406.72 and 6,245.12 is: 9,368.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,270.72 : 9,406.72 = 6,245.12 : x
  2. Step 2: Convert to fraction form
    6,270.72/9,406.72 = 6,245.12/x
  3. Step 3: Cross multiply
    6,270.72x = 9,406.72 × 6,245.12
  4. Step 4: Simplify right side
    6,270.72x = 58,746,095.21
  5. Step 5: Solve for x
    x = 58,746,095.21/6,270.72
  6. Step 6: Final answer
    x = 9,368.32

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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.