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Finding the Fourth Proportional to 5,590.94, 7,710.20 and 3,673.38

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Solution

The fourth proportional to 5,590.94, 7,710.20 and 3,673.38 is: 5,065.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.94 : 7,710.20 = 3,673.38 : x
  2. Step 2: Convert to fraction form
    5,590.94/7,710.20 = 3,673.38/x
  3. Step 3: Cross multiply
    5,590.94x = 7,710.20 × 3,673.38
  4. Step 4: Simplify right side
    5,590.94x = 28,322,495.38
  5. Step 5: Solve for x
    x = 28,322,495.38/5,590.94
  6. Step 6: Final answer
    x = 5,065.79

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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.