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Finding the Fourth Proportional to 5,379.16, 7,418.16 and 4,052.38

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Solution

The fourth proportional to 5,379.16, 7,418.16 and 4,052.38 is: 5,588.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.16 : 7,418.16 = 4,052.38 : x
  2. Step 2: Convert to fraction form
    5,379.16/7,418.16 = 4,052.38/x
  3. Step 3: Cross multiply
    5,379.16x = 7,418.16 × 4,052.38
  4. Step 4: Simplify right side
    5,379.16x = 30,061,203.22
  5. Step 5: Solve for x
    x = 30,061,203.22/5,379.16
  6. Step 6: Final answer
    x = 5,588.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.