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Finding the Fourth Proportional to 19,364.13, 29,058.48 and 8,270.89

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Solution

The fourth proportional to 19,364.13, 29,058.48 and 8,270.89 is: 12,411.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,364.13 : 29,058.48 = 8,270.89 : x
  2. Step 2: Convert to fraction form
    19,364.13/29,058.48 = 8,270.89/x
  3. Step 3: Cross multiply
    19,364.13x = 29,058.48 × 8,270.89
  4. Step 4: Simplify right side
    19,364.13x = 240,339,419.00
  5. Step 5: Solve for x
    x = 240,339,419.00/19,364.13
  6. Step 6: Final answer
    x = 12,411.58

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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.