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Finding the Fourth Proportional to 9,393.42, 12,957.30 and 6,206.76

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Solution

The fourth proportional to 9,393.42, 12,957.30 and 6,206.76 is: 8,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393.42 : 12,957.30 = 6,206.76 : x
  2. Step 2: Convert to fraction form
    9,393.42/12,957.30 = 6,206.76/x
  3. Step 3: Cross multiply
    9,393.42x = 12,957.30 × 6,206.76
  4. Step 4: Simplify right side
    9,393.42x = 80,422,851.35
  5. Step 5: Solve for x
    x = 80,422,851.35/9,393.42
  6. Step 6: Final answer
    x = 8,561.62

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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.