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Finding the Fourth Proportional to 25,397.42, 35,048.40 and 14,219.42

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Solution

The fourth proportional to 25,397.42, 35,048.40 and 14,219.42 is: 19,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,397.42 : 35,048.40 = 14,219.42 : x
  2. Step 2: Convert to fraction form
    25,397.42/35,048.40 = 14,219.42/x
  3. Step 3: Cross multiply
    25,397.42x = 35,048.40 × 14,219.42
  4. Step 4: Simplify right side
    25,397.42x = 498,367,919.93
  5. Step 5: Solve for x
    x = 498,367,919.93/25,397.42
  6. Step 6: Final answer
    x = 19,622.78

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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.