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Finding the Fourth Proportional to 25,698.39, 38,554.05 and 7,230.39

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Solution

The fourth proportional to 25,698.39, 38,554.05 and 7,230.39 is: 10,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,698.39 : 38,554.05 = 7,230.39 : x
  2. Step 2: Convert to fraction form
    25,698.39/38,554.05 = 7,230.39/x
  3. Step 3: Cross multiply
    25,698.39x = 38,554.05 × 7,230.39
  4. Step 4: Simplify right side
    25,698.39x = 278,760,817.58
  5. Step 5: Solve for x
    x = 278,760,817.58/25,698.39
  6. Step 6: Final answer
    x = 10,847.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.