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Finding the Fourth Proportional to 6,673.56, 9,208.71 and 3,688.99

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Solution

The fourth proportional to 6,673.56, 9,208.71 and 3,688.99 is: 5,090.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,673.56 : 9,208.71 = 3,688.99 : x
  2. Step 2: Convert to fraction form
    6,673.56/9,208.71 = 3,688.99/x
  3. Step 3: Cross multiply
    6,673.56x = 9,208.71 × 3,688.99
  4. Step 4: Simplify right side
    6,673.56x = 33,970,839.10
  5. Step 5: Solve for x
    x = 33,970,839.10/6,673.56
  6. Step 6: Final answer
    x = 5,090.36

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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.