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Finding the Fourth Proportional to 17,216.28, 25,831.71 and 9,415.98

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Solution

The fourth proportional to 17,216.28, 25,831.71 and 9,415.98 is: 14,127.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,216.28 : 25,831.71 = 9,415.98 : x
  2. Step 2: Convert to fraction form
    17,216.28/25,831.71 = 9,415.98/x
  3. Step 3: Cross multiply
    17,216.28x = 25,831.71 × 9,415.98
  4. Step 4: Simplify right side
    17,216.28x = 243,230,864.73
  5. Step 5: Solve for x
    x = 243,230,864.73/17,216.28
  6. Step 6: Final answer
    x = 14,127.96

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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.