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Finding the Fourth Proportional to 5,390.79, 8,072.10 and 5,062.33

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Solution

The fourth proportional to 5,390.79, 8,072.10 and 5,062.33 is: 7,580.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.79 : 8,072.10 = 5,062.33 : x
  2. Step 2: Convert to fraction form
    5,390.79/8,072.10 = 5,062.33/x
  3. Step 3: Cross multiply
    5,390.79x = 8,072.10 × 5,062.33
  4. Step 4: Simplify right side
    5,390.79x = 40,863,633.99
  5. Step 5: Solve for x
    x = 40,863,633.99/5,390.79
  6. Step 6: Final answer
    x = 7,580.27

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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.