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Finding the Fourth Proportional to 25,911, 35,761.50 and 19,612.44

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Solution

The fourth proportional to 25,911, 35,761.50 and 19,612.44 is: 27,068.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,911 : 35,761.50 = 19,612.44 : x
  2. Step 2: Convert to fraction form
    25,911/35,761.50 = 19,612.44/x
  3. Step 3: Cross multiply
    25,911x = 35,761.50 × 19,612.44
  4. Step 4: Simplify right side
    25,911x = 701,370,273.06
  5. Step 5: Solve for x
    x = 701,370,273.06/25,911
  6. Step 6: Final answer
    x = 27,068.44

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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.