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Finding the Fourth Proportional to 6,658.51, 9,188.81 and 3,674.28

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Solution

The fourth proportional to 6,658.51, 9,188.81 and 3,674.28 is: 5,070.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658.51 : 9,188.81 = 3,674.28 : x
  2. Step 2: Convert to fraction form
    6,658.51/9,188.81 = 3,674.28/x
  3. Step 3: Cross multiply
    6,658.51x = 9,188.81 × 3,674.28
  4. Step 4: Simplify right side
    6,658.51x = 33,762,260.81
  5. Step 5: Solve for x
    x = 33,762,260.81/6,658.51
  6. Step 6: Final answer
    x = 5,070.54

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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.