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Finding the Fourth Proportional to 25,950.70, 35,811.48 and 15,878.35

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Solution

The fourth proportional to 25,950.70, 35,811.48 and 15,878.35 is: 21,911.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,950.70 : 35,811.48 = 15,878.35 : x
  2. Step 2: Convert to fraction form
    25,950.70/35,811.48 = 15,878.35/x
  3. Step 3: Cross multiply
    25,950.70x = 35,811.48 × 15,878.35
  4. Step 4: Simplify right side
    25,950.70x = 568,627,213.46
  5. Step 5: Solve for x
    x = 568,627,213.46/25,950.70
  6. Step 6: Final answer
    x = 21,911.83

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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.