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Finding the Fourth Proportional to 25,143.36, 37,721.09 and 9,348.92

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Solution

The fourth proportional to 25,143.36, 37,721.09 and 9,348.92 is: 14,025.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,143.36 : 37,721.09 = 9,348.92 : x
  2. Step 2: Convert to fraction form
    25,143.36/37,721.09 = 9,348.92/x
  3. Step 3: Cross multiply
    25,143.36x = 37,721.09 × 9,348.92
  4. Step 4: Simplify right side
    25,143.36x = 352,651,428.94
  5. Step 5: Solve for x
    x = 352,651,428.94/25,143.36
  6. Step 6: Final answer
    x = 14,025.63

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1.5x scale

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.