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Finding the Fourth Proportional to 13,329.48, 19,977.48 and 6,309.48

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Solution

The fourth proportional to 13,329.48, 19,977.48 and 6,309.48 is: 9,456.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.48 : 19,977.48 = 6,309.48 : x
  2. Step 2: Convert to fraction form
    13,329.48/19,977.48 = 6,309.48/x
  3. Step 3: Cross multiply
    13,329.48x = 19,977.48 × 6,309.48
  4. Step 4: Simplify right side
    13,329.48x = 126,047,510.51
  5. Step 5: Solve for x
    x = 126,047,510.51/13,329.48
  6. Step 6: Final answer
    x = 9,456.30

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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.