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Finding the Fourth Proportional to 13,159.65, 19,747.25 and 4,845.49

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Solution

The fourth proportional to 13,159.65, 19,747.25 and 4,845.49 is: 7,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.65 : 19,747.25 = 4,845.49 : x
  2. Step 2: Convert to fraction form
    13,159.65/19,747.25 = 4,845.49/x
  3. Step 3: Cross multiply
    13,159.65x = 19,747.25 × 4,845.49
  4. Step 4: Simplify right side
    13,159.65x = 95,685,102.40
  5. Step 5: Solve for x
    x = 95,685,102.40/13,159.65
  6. Step 6: Final answer
    x = 7,271.10

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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.