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Finding the Fourth Proportional to 8,350.65, 11,521.10 and 4,813.79

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Solution

The fourth proportional to 8,350.65, 11,521.10 and 4,813.79 is: 6,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,350.65 : 11,521.10 = 4,813.79 : x
  2. Step 2: Convert to fraction form
    8,350.65/11,521.10 = 4,813.79/x
  3. Step 3: Cross multiply
    8,350.65x = 11,521.10 × 4,813.79
  4. Step 4: Simplify right side
    8,350.65x = 55,460,110.40
  5. Step 5: Solve for x
    x = 55,460,110.40/8,350.65
  6. Step 6: Final answer
    x = 6,641.41

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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.