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Finding the Fourth Proportional to 25,290.86, 37,934.67 and 7,759.22

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Solution

The fourth proportional to 25,290.86, 37,934.67 and 7,759.22 is: 11,638.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,290.86 : 37,934.67 = 7,759.22 : x
  2. Step 2: Convert to fraction form
    25,290.86/37,934.67 = 7,759.22/x
  3. Step 3: Cross multiply
    25,290.86x = 37,934.67 × 7,759.22
  4. Step 4: Simplify right side
    25,290.86x = 294,343,450.16
  5. Step 5: Solve for x
    x = 294,343,450.16/25,290.86
  6. Step 6: Final answer
    x = 11,638.33

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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.