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Finding the Fourth Proportional to 6,307.54, 8,705.91 and 3,656.41

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Solution

The fourth proportional to 6,307.54, 8,705.91 and 3,656.41 is: 5,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.54 : 8,705.91 = 3,656.41 : x
  2. Step 2: Convert to fraction form
    6,307.54/8,705.91 = 3,656.41/x
  3. Step 3: Cross multiply
    6,307.54x = 8,705.91 × 3,656.41
  4. Step 4: Simplify right side
    6,307.54x = 31,832,376.38
  5. Step 5: Solve for x
    x = 31,832,376.38/6,307.54
  6. Step 6: Final answer
    x = 5,046.72

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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.