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Finding the Fourth Proportional to 6,690.53, 9,232.05 and 3,858.01

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Solution

The fourth proportional to 6,690.53, 9,232.05 and 3,858.01 is: 5,323.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.53 : 9,232.05 = 3,858.01 : x
  2. Step 2: Convert to fraction form
    6,690.53/9,232.05 = 3,858.01/x
  3. Step 3: Cross multiply
    6,690.53x = 9,232.05 × 3,858.01
  4. Step 4: Simplify right side
    6,690.53x = 35,617,295.06
  5. Step 5: Solve for x
    x = 35,617,295.06/6,690.53
  6. Step 6: Final answer
    x = 5,323.54

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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.