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Finding the Fourth Proportional to 25,376.80, 35,019.60 and 14,198.80

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Solution

The fourth proportional to 25,376.80, 35,019.60 and 14,198.80 is: 19,594.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,376.80 : 35,019.60 = 14,198.80 : x
  2. Step 2: Convert to fraction form
    25,376.80/35,019.60 = 14,198.80/x
  3. Step 3: Cross multiply
    25,376.80x = 35,019.60 × 14,198.80
  4. Step 4: Simplify right side
    25,376.80x = 497,236,296.48
  5. Step 5: Solve for x
    x = 497,236,296.48/25,376.80
  6. Step 6: Final answer
    x = 19,594.13

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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.