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Finding the Fourth Proportional to 9,484.88, 13,082.76 and 6,172.88

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Solution

The fourth proportional to 9,484.88, 13,082.76 and 6,172.88 is: 8,514.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,484.88 : 13,082.76 = 6,172.88 : x
  2. Step 2: Convert to fraction form
    9,484.88/13,082.76 = 6,172.88/x
  3. Step 3: Cross multiply
    9,484.88x = 13,082.76 × 6,172.88
  4. Step 4: Simplify right side
    9,484.88x = 80,758,307.55
  5. Step 5: Solve for x
    x = 80,758,307.55/9,484.88
  6. Step 6: Final answer
    x = 8,514.43

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Half scale
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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.