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Finding the Fourth Proportional to 11,347.92, 15,658.93 and 6,311.33

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Solution

The fourth proportional to 11,347.92, 15,658.93 and 6,311.33 is: 8,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.92 : 15,658.93 = 6,311.33 : x
  2. Step 2: Convert to fraction form
    11,347.92/15,658.93 = 6,311.33/x
  3. Step 3: Cross multiply
    11,347.92x = 15,658.93 × 6,311.33
  4. Step 4: Simplify right side
    11,347.92x = 98,828,674.68
  5. Step 5: Solve for x
    x = 98,828,674.68/11,347.92
  6. Step 6: Final answer
    x = 8,708.97

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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.