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Finding the Fourth Proportional to 6,473.85, 8,946 and 5,516.22

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Solution

The fourth proportional to 6,473.85, 8,946 and 5,516.22 is: 7,622.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,473.85 : 8,946 = 5,516.22 : x
  2. Step 2: Convert to fraction form
    6,473.85/8,946 = 5,516.22/x
  3. Step 3: Cross multiply
    6,473.85x = 8,946 × 5,516.22
  4. Step 4: Simplify right side
    6,473.85x = 49,348,104.12
  5. Step 5: Solve for x
    x = 49,348,104.12/6,473.85
  6. Step 6: Final answer
    x = 7,622.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.