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Finding the Fourth Proportional to 7,160.79, 10,745.01 and 5,393.64

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Solution

The fourth proportional to 7,160.79, 10,745.01 and 5,393.64 is: 8,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.79 : 10,745.01 = 5,393.64 : x
  2. Step 2: Convert to fraction form
    7,160.79/10,745.01 = 5,393.64/x
  3. Step 3: Cross multiply
    7,160.79x = 10,745.01 × 5,393.64
  4. Step 4: Simplify right side
    7,160.79x = 57,954,715.74
  5. Step 5: Solve for x
    x = 57,954,715.74/7,160.79
  6. Step 6: Final answer
    x = 8,093.34

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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.