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Finding the Fourth Proportional to 16,607.56, 22,918.52 and 9,155.56

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Solution

The fourth proportional to 16,607.56, 22,918.52 and 9,155.56 is: 12,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,607.56 : 22,918.52 = 9,155.56 : x
  2. Step 2: Convert to fraction form
    16,607.56/22,918.52 = 9,155.56/x
  3. Step 3: Cross multiply
    16,607.56x = 22,918.52 × 9,155.56
  4. Step 4: Simplify right side
    16,607.56x = 209,831,884.97
  5. Step 5: Solve for x
    x = 209,831,884.97/16,607.56
  6. Step 6: Final answer
    x = 12,634.72

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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.