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Finding the Fourth Proportional to 8,672.82, 11,969.82 and 4,897.50

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Solution

The fourth proportional to 8,672.82, 11,969.82 and 4,897.50 is: 6,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.82 : 11,969.82 = 4,897.50 : x
  2. Step 2: Convert to fraction form
    8,672.82/11,969.82 = 4,897.50/x
  3. Step 3: Cross multiply
    8,672.82x = 11,969.82 × 4,897.50
  4. Step 4: Simplify right side
    8,672.82x = 58,622,193.45
  5. Step 5: Solve for x
    x = 58,622,193.45/8,672.82
  6. Step 6: Final answer
    x = 6,759.30

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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.