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Finding the Fourth Proportional to 19,364.08, 29,047.20 and 5,512

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Solution

The fourth proportional to 19,364.08, 29,047.20 and 5,512 is: 8,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,364.08 : 29,047.20 = 5,512 : x
  2. Step 2: Convert to fraction form
    19,364.08/29,047.20 = 5,512/x
  3. Step 3: Cross multiply
    19,364.08x = 29,047.20 × 5,512
  4. Step 4: Simplify right side
    19,364.08x = 160,108,166.40
  5. Step 5: Solve for x
    x = 160,108,166.40/19,364.08
  6. Step 6: Final answer
    x = 8,268.31

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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.