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Finding the Fourth Proportional to 6,339.72, 8,736.48 and 4,567.98

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Solution

The fourth proportional to 6,339.72, 8,736.48 and 4,567.98 is: 6,294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.72 : 8,736.48 = 4,567.98 : x
  2. Step 2: Convert to fraction form
    6,339.72/8,736.48 = 4,567.98/x
  3. Step 3: Cross multiply
    6,339.72x = 8,736.48 × 4,567.98
  4. Step 4: Simplify right side
    6,339.72x = 39,908,065.91
  5. Step 5: Solve for x
    x = 39,908,065.91/6,339.72
  6. Step 6: Final answer
    x = 6,294.93

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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.