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Finding the Fourth Proportional to 14,608.02, 21,915.12 and 4,747.08

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Solution

The fourth proportional to 14,608.02, 21,915.12 and 4,747.08 is: 7,121.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.02 : 21,915.12 = 4,747.08 : x
  2. Step 2: Convert to fraction form
    14,608.02/21,915.12 = 4,747.08/x
  3. Step 3: Cross multiply
    14,608.02x = 21,915.12 × 4,747.08
  4. Step 4: Simplify right side
    14,608.02x = 104,032,827.85
  5. Step 5: Solve for x
    x = 104,032,827.85/14,608.02
  6. Step 6: Final answer
    x = 7,121.62

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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.