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Finding the Fourth Proportional to 6,960.77, 10,421.10 and 4,623.11

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Solution

The fourth proportional to 6,960.77, 10,421.10 and 4,623.11 is: 6,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,960.77 : 10,421.10 = 4,623.11 : x
  2. Step 2: Convert to fraction form
    6,960.77/10,421.10 = 4,623.11/x
  3. Step 3: Cross multiply
    6,960.77x = 10,421.10 × 4,623.11
  4. Step 4: Simplify right side
    6,960.77x = 48,177,891.62
  5. Step 5: Solve for x
    x = 48,177,891.62/6,960.77
  6. Step 6: Final answer
    x = 6,921.35

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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.