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Finding the Fourth Proportional to 25,367.64, 35,040.81 and 19,472.16

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Solution

The fourth proportional to 25,367.64, 35,040.81 and 19,472.16 is: 26,897.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,367.64 : 35,040.81 = 19,472.16 : x
  2. Step 2: Convert to fraction form
    25,367.64/35,040.81 = 19,472.16/x
  3. Step 3: Cross multiply
    25,367.64x = 35,040.81 × 19,472.16
  4. Step 4: Simplify right side
    25,367.64x = 682,320,258.85
  5. Step 5: Solve for x
    x = 682,320,258.85/25,367.64
  6. Step 6: Final answer
    x = 26,897.27

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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.