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Finding the Fourth Proportional to 25,199.76, 37,805.88 and 7,668.72

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Solution

The fourth proportional to 25,199.76, 37,805.88 and 7,668.72 is: 11,504.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,199.76 : 37,805.88 = 7,668.72 : x
  2. Step 2: Convert to fraction form
    25,199.76/37,805.88 = 7,668.72/x
  3. Step 3: Cross multiply
    25,199.76x = 37,805.88 × 7,668.72
  4. Step 4: Simplify right side
    25,199.76x = 289,922,708.07
  5. Step 5: Solve for x
    x = 289,922,708.07/25,199.76
  6. Step 6: Final answer
    x = 11,504.98

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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.