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Finding the Fourth Proportional to 9,234.48, 12,739.95 and 5,691.54

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Solution

The fourth proportional to 9,234.48, 12,739.95 and 5,691.54 is: 7,852.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,234.48 : 12,739.95 = 5,691.54 : x
  2. Step 2: Convert to fraction form
    9,234.48/12,739.95 = 5,691.54/x
  3. Step 3: Cross multiply
    9,234.48x = 12,739.95 × 5,691.54
  4. Step 4: Simplify right side
    9,234.48x = 72,509,935.02
  5. Step 5: Solve for x
    x = 72,509,935.02/9,234.48
  6. Step 6: Final answer
    x = 7,852.09

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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.