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Finding the Fourth Proportional to 13,010.63, 17,954.06 and 7,344.68

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Solution

The fourth proportional to 13,010.63, 17,954.06 and 7,344.68 is: 10,135.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.63 : 17,954.06 = 7,344.68 : x
  2. Step 2: Convert to fraction form
    13,010.63/17,954.06 = 7,344.68/x
  3. Step 3: Cross multiply
    13,010.63x = 17,954.06 × 7,344.68
  4. Step 4: Simplify right side
    13,010.63x = 131,866,698.91
  5. Step 5: Solve for x
    x = 131,866,698.91/13,010.63
  6. Step 6: Final answer
    x = 10,135.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.