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Finding the Fourth Proportional to 11,392.80, 15,719.12 and 10,600.02

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Solution

The fourth proportional to 11,392.80, 15,719.12 and 10,600.02 is: 14,625.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.80 : 15,719.12 = 10,600.02 : x
  2. Step 2: Convert to fraction form
    11,392.80/15,719.12 = 10,600.02/x
  3. Step 3: Cross multiply
    11,392.80x = 15,719.12 × 10,600.02
  4. Step 4: Simplify right side
    11,392.80x = 166,622,986.38
  5. Step 5: Solve for x
    x = 166,622,986.38/11,392.80
  6. Step 6: Final answer
    x = 14,625.29

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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.