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Finding the Fourth Proportional to 5,371.34, 7,415.89 and 4,379.00

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Solution

The fourth proportional to 5,371.34, 7,415.89 and 4,379.00 is: 6,045.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.34 : 7,415.89 = 4,379.00 : x
  2. Step 2: Convert to fraction form
    5,371.34/7,415.89 = 4,379.00/x
  3. Step 3: Cross multiply
    5,371.34x = 7,415.89 × 4,379.00
  4. Step 4: Simplify right side
    5,371.34x = 32,474,134.28
  5. Step 5: Solve for x
    x = 32,474,134.28/5,371.34
  6. Step 6: Final answer
    x = 6,045.82

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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.