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Finding the Fourth Proportional to 7,659.93, 11,485.29 and 3,442.44

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Solution

The fourth proportional to 7,659.93, 11,485.29 and 3,442.44 is: 5,161.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.93 : 11,485.29 = 3,442.44 : x
  2. Step 2: Convert to fraction form
    7,659.93/11,485.29 = 3,442.44/x
  3. Step 3: Cross multiply
    7,659.93x = 11,485.29 × 3,442.44
  4. Step 4: Simplify right side
    7,659.93x = 39,537,421.71
  5. Step 5: Solve for x
    x = 39,537,421.71/7,659.93
  6. Step 6: Final answer
    x = 5,161.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.