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Finding the Fourth Proportional to 5,659.50, 7,811.67 and 3,302.10

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Solution

The fourth proportional to 5,659.50, 7,811.67 and 3,302.10 is: 4,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,659.50 : 7,811.67 = 3,302.10 : x
  2. Step 2: Convert to fraction form
    5,659.50/7,811.67 = 3,302.10/x
  3. Step 3: Cross multiply
    5,659.50x = 7,811.67 × 3,302.10
  4. Step 4: Simplify right side
    5,659.50x = 25,794,915.51
  5. Step 5: Solve for x
    x = 25,794,915.51/5,659.50
  6. Step 6: Final answer
    x = 4,557.81

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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.