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Finding the Fourth Proportional to 13,203.94, 19,808.98 and 5,808.98

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Solution

The fourth proportional to 13,203.94, 19,808.98 and 5,808.98 is: 8,714.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.94 : 19,808.98 = 5,808.98 : x
  2. Step 2: Convert to fraction form
    13,203.94/19,808.98 = 5,808.98/x
  3. Step 3: Cross multiply
    13,203.94x = 19,808.98 × 5,808.98
  4. Step 4: Simplify right side
    13,203.94x = 115,069,968.64
  5. Step 5: Solve for x
    x = 115,069,968.64/13,203.94
  6. Step 6: Final answer
    x = 8,714.82

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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.