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Finding the Fourth Proportional to 6,590.84, 9,095.08 and 3,939.71

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Solution

The fourth proportional to 6,590.84, 9,095.08 and 3,939.71 is: 5,436.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,590.84 : 9,095.08 = 3,939.71 : x
  2. Step 2: Convert to fraction form
    6,590.84/9,095.08 = 3,939.71/x
  3. Step 3: Cross multiply
    6,590.84x = 9,095.08 × 3,939.71
  4. Step 4: Simplify right side
    6,590.84x = 35,831,932.15
  5. Step 5: Solve for x
    x = 35,831,932.15/6,590.84
  6. Step 6: Final answer
    x = 5,436.63

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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.