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Finding the Fourth Proportional to 25,830.90, 38,745.36 and 7,362.90

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Solution

The fourth proportional to 25,830.90, 38,745.36 and 7,362.90 is: 11,044.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,830.90 : 38,745.36 = 7,362.90 : x
  2. Step 2: Convert to fraction form
    25,830.90/38,745.36 = 7,362.90/x
  3. Step 3: Cross multiply
    25,830.90x = 38,745.36 × 7,362.90
  4. Step 4: Simplify right side
    25,830.90x = 285,278,211.14
  5. Step 5: Solve for x
    x = 285,278,211.14/25,830.90
  6. Step 6: Final answer
    x = 11,044.07

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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.