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Finding the Fourth Proportional to 8,915.84, 13,372.68 and 4,536.44

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Solution

The fourth proportional to 8,915.84, 13,372.68 and 4,536.44 is: 6,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.84 : 13,372.68 = 4,536.44 : x
  2. Step 2: Convert to fraction form
    8,915.84/13,372.68 = 4,536.44/x
  3. Step 3: Cross multiply
    8,915.84x = 13,372.68 × 4,536.44
  4. Step 4: Simplify right side
    8,915.84x = 60,664,360.46
  5. Step 5: Solve for x
    x = 60,664,360.46/8,915.84
  6. Step 6: Final answer
    x = 6,804.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.