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Finding the Fourth Proportional to 16,376.15, 22,599.10 and 9,661.79

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Solution

The fourth proportional to 16,376.15, 22,599.10 and 9,661.79 is: 13,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,376.15 : 22,599.10 = 9,661.79 : x
  2. Step 2: Convert to fraction form
    16,376.15/22,599.10 = 9,661.79/x
  3. Step 3: Cross multiply
    16,376.15x = 22,599.10 × 9,661.79
  4. Step 4: Simplify right side
    16,376.15x = 218,347,758.39
  5. Step 5: Solve for x
    x = 218,347,758.39/16,376.15
  6. Step 6: Final answer
    x = 13,333.28

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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.