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Finding the Fourth Proportional to 5,064.61, 6,980.80 and 3,385.41

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Solution

The fourth proportional to 5,064.61, 6,980.80 and 3,385.41 is: 4,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,064.61 : 6,980.80 = 3,385.41 : x
  2. Step 2: Convert to fraction form
    5,064.61/6,980.80 = 3,385.41/x
  3. Step 3: Cross multiply
    5,064.61x = 6,980.80 × 3,385.41
  4. Step 4: Simplify right side
    5,064.61x = 23,632,858.79
  5. Step 5: Solve for x
    x = 23,632,858.79/5,064.61
  6. Step 6: Final answer
    x = 4,666.27

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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.