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Finding the Fourth Proportional to 4,911.78, 7,324.54 and 4,868.04

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Solution

The fourth proportional to 4,911.78, 7,324.54 and 4,868.04 is: 7,259.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.78 : 7,324.54 = 4,868.04 : x
  2. Step 2: Convert to fraction form
    4,911.78/7,324.54 = 4,868.04/x
  3. Step 3: Cross multiply
    4,911.78x = 7,324.54 × 4,868.04
  4. Step 4: Simplify right side
    4,911.78x = 35,656,153.70
  5. Step 5: Solve for x
    x = 35,656,153.70/4,911.78
  6. Step 6: Final answer
    x = 7,259.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.