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Finding the Fourth Proportional to 6,712.93, 9,259.27 and 3,918.43

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Solution

The fourth proportional to 6,712.93, 9,259.27 and 3,918.43 is: 5,404.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,712.93 : 9,259.27 = 3,918.43 : x
  2. Step 2: Convert to fraction form
    6,712.93/9,259.27 = 3,918.43/x
  3. Step 3: Cross multiply
    6,712.93x = 9,259.27 × 3,918.43
  4. Step 4: Simplify right side
    6,712.93x = 36,281,801.35
  5. Step 5: Solve for x
    x = 36,281,801.35/6,712.93
  6. Step 6: Final answer
    x = 5,404.76

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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.