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Finding the Fourth Proportional to 10,616.37, 15,880.64 and 9,654.09

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Solution

The fourth proportional to 10,616.37, 15,880.64 and 9,654.09 is: 14,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616.37 : 15,880.64 = 9,654.09 : x
  2. Step 2: Convert to fraction form
    10,616.37/15,880.64 = 9,654.09/x
  3. Step 3: Cross multiply
    10,616.37x = 15,880.64 × 9,654.09
  4. Step 4: Simplify right side
    10,616.37x = 153,313,079.55
  5. Step 5: Solve for x
    x = 153,313,079.55/10,616.37
  6. Step 6: Final answer
    x = 14,441.20

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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.