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Finding the Fourth Proportional to 2,369.79, 3,553.16 and 984.08

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Solution

The fourth proportional to 2,369.79, 3,553.16 and 984.08 is: 1,475.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,369.79 : 3,553.16 = 984.08 : x
  2. Step 2: Convert to fraction form
    2,369.79/3,553.16 = 984.08/x
  3. Step 3: Cross multiply
    2,369.79x = 3,553.16 × 984.08
  4. Step 4: Simplify right side
    2,369.79x = 3,496,579.89
  5. Step 5: Solve for x
    x = 3,496,579.89/2,369.79
  6. Step 6: Final answer
    x = 1,475.48

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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.