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Finding the Fourth Proportional to 12,260.99, 18,397.58 and 4,865.29

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Solution

The fourth proportional to 12,260.99, 18,397.58 and 4,865.29 is: 7,300.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.99 : 18,397.58 = 4,865.29 : x
  2. Step 2: Convert to fraction form
    12,260.99/18,397.58 = 4,865.29/x
  3. Step 3: Cross multiply
    12,260.99x = 18,397.58 × 4,865.29
  4. Step 4: Simplify right side
    12,260.99x = 89,509,491.68
  5. Step 5: Solve for x
    x = 89,509,491.68/12,260.99
  6. Step 6: Final answer
    x = 7,300.35

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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.