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Finding the Fourth Proportional to 16,398.72, 22,629.95 and 9,324.98

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Solution

The fourth proportional to 16,398.72, 22,629.95 and 9,324.98 is: 12,868.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,398.72 : 22,629.95 = 9,324.98 : x
  2. Step 2: Convert to fraction form
    16,398.72/22,629.95 = 9,324.98/x
  3. Step 3: Cross multiply
    16,398.72x = 22,629.95 × 9,324.98
  4. Step 4: Simplify right side
    16,398.72x = 211,023,831.15
  5. Step 5: Solve for x
    x = 211,023,831.15/16,398.72
  6. Step 6: Final answer
    x = 12,868.31

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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.