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Finding the Fourth Proportional to 17,993.71, 24,831.20 and 9,927.78

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Solution

The fourth proportional to 17,993.71, 24,831.20 and 9,927.78 is: 13,700.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993.71 : 24,831.20 = 9,927.78 : x
  2. Step 2: Convert to fraction form
    17,993.71/24,831.20 = 9,927.78/x
  3. Step 3: Cross multiply
    17,993.71x = 24,831.20 × 9,927.78
  4. Step 4: Simplify right side
    17,993.71x = 246,518,690.74
  5. Step 5: Solve for x
    x = 246,518,690.74/17,993.71
  6. Step 6: Final answer
    x = 13,700.27

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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.