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Finding the Fourth Proportional to 25,391.63, 35,040.36 and 14,213.63

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Solution

The fourth proportional to 25,391.63, 35,040.36 and 14,213.63 is: 19,614.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,391.63 : 35,040.36 = 14,213.63 : x
  2. Step 2: Convert to fraction form
    25,391.63/35,040.36 = 14,213.63/x
  3. Step 3: Cross multiply
    25,391.63x = 35,040.36 × 14,213.63
  4. Step 4: Simplify right side
    25,391.63x = 498,050,799.71
  5. Step 5: Solve for x
    x = 498,050,799.71/25,391.63
  6. Step 6: Final answer
    x = 19,614.76

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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.