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Finding the Fourth Proportional to 6,616.62, 9,130.61 and 3,632.38

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Solution

The fourth proportional to 6,616.62, 9,130.61 and 3,632.38 is: 5,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.62 : 9,130.61 = 3,632.38 : x
  2. Step 2: Convert to fraction form
    6,616.62/9,130.61 = 3,632.38/x
  3. Step 3: Cross multiply
    6,616.62x = 9,130.61 × 3,632.38
  4. Step 4: Simplify right side
    6,616.62x = 33,165,831.41
  5. Step 5: Solve for x
    x = 33,165,831.41/6,616.62
  6. Step 6: Final answer
    x = 5,012.50

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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.