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Finding the Fourth Proportional to 8,505.55, 11,732.47 and 5,983.21

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Solution

The fourth proportional to 8,505.55, 11,732.47 and 5,983.21 is: 8,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.55 : 11,732.47 = 5,983.21 : x
  2. Step 2: Convert to fraction form
    8,505.55/11,732.47 = 5,983.21/x
  3. Step 3: Cross multiply
    8,505.55x = 11,732.47 × 5,983.21
  4. Step 4: Simplify right side
    8,505.55x = 70,197,831.83
  5. Step 5: Solve for x
    x = 70,197,831.83/8,505.55
  6. Step 6: Final answer
    x = 8,253.18

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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.