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Finding the Fourth Proportional to 19,957.50, 29,941.34 and 5,918.04

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Solution

The fourth proportional to 19,957.50, 29,941.34 and 5,918.04 is: 8,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.50 : 29,941.34 = 5,918.04 : x
  2. Step 2: Convert to fraction form
    19,957.50/29,941.34 = 5,918.04/x
  3. Step 3: Cross multiply
    19,957.50x = 29,941.34 × 5,918.04
  4. Step 4: Simplify right side
    19,957.50x = 177,194,018.18
  5. Step 5: Solve for x
    x = 177,194,018.18/19,957.50
  6. Step 6: Final answer
    x = 8,878.57

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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.