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Finding the Fourth Proportional to 17,747.70, 26,661.15 and 14,831.70

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Solution

The fourth proportional to 17,747.70, 26,661.15 and 14,831.70 is: 22,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,747.70 : 26,661.15 = 14,831.70 : x
  2. Step 2: Convert to fraction form
    17,747.70/26,661.15 = 14,831.70/x
  3. Step 3: Cross multiply
    17,747.70x = 26,661.15 × 14,831.70
  4. Step 4: Simplify right side
    17,747.70x = 395,430,178.46
  5. Step 5: Solve for x
    x = 395,430,178.46/17,747.70
  6. Step 6: Final answer
    x = 22,280.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.