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Finding the Fourth Proportional to 35,672.40, 53,470.20 and 13,477.20

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Solution

The fourth proportional to 35,672.40, 53,470.20 and 13,477.20 is: 20,201.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,672.40 : 53,470.20 = 13,477.20 : x
  2. Step 2: Convert to fraction form
    35,672.40/53,470.20 = 13,477.20/x
  3. Step 3: Cross multiply
    35,672.40x = 53,470.20 × 13,477.20
  4. Step 4: Simplify right side
    35,672.40x = 720,628,579.44
  5. Step 5: Solve for x
    x = 720,628,579.44/35,672.40
  6. Step 6: Final answer
    x = 20,201.29

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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.