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Finding the Fourth Proportional to 16,610.94, 22,920.48 and 9,896.40

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Solution

The fourth proportional to 16,610.94, 22,920.48 and 9,896.40 is: 13,655.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,610.94 : 22,920.48 = 9,896.40 : x
  2. Step 2: Convert to fraction form
    16,610.94/22,920.48 = 9,896.40/x
  3. Step 3: Cross multiply
    16,610.94x = 22,920.48 × 9,896.40
  4. Step 4: Simplify right side
    16,610.94x = 226,830,238.27
  5. Step 5: Solve for x
    x = 226,830,238.27/16,610.94
  6. Step 6: Final answer
    x = 13,655.47

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Similar ratio
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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.