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Finding the Fourth Proportional to 7,066.17, 9,751.44 and 3,879.77

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Solution

The fourth proportional to 7,066.17, 9,751.44 and 3,879.77 is: 5,354.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,066.17 : 9,751.44 = 3,879.77 : x
  2. Step 2: Convert to fraction form
    7,066.17/9,751.44 = 3,879.77/x
  3. Step 3: Cross multiply
    7,066.17x = 9,751.44 × 3,879.77
  4. Step 4: Simplify right side
    7,066.17x = 37,833,295.61
  5. Step 5: Solve for x
    x = 37,833,295.61/7,066.17
  6. Step 6: Final answer
    x = 5,354.14

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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.