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Finding the Fourth Proportional to 6,479.34, 9,720.18 and 4,016.94

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Solution

The fourth proportional to 6,479.34, 9,720.18 and 4,016.94 is: 6,026.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.34 : 9,720.18 = 4,016.94 : x
  2. Step 2: Convert to fraction form
    6,479.34/9,720.18 = 4,016.94/x
  3. Step 3: Cross multiply
    6,479.34x = 9,720.18 × 4,016.94
  4. Step 4: Simplify right side
    6,479.34x = 39,045,379.85
  5. Step 5: Solve for x
    x = 39,045,379.85/6,479.34
  6. Step 6: Final answer
    x = 6,026.14

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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.