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Finding the Fourth Proportional to 25,305.97, 37,959.40 and 7,775.95

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Solution

The fourth proportional to 25,305.97, 37,959.40 and 7,775.95 is: 11,664.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.97 : 37,959.40 = 7,775.95 : x
  2. Step 2: Convert to fraction form
    25,305.97/37,959.40 = 7,775.95/x
  3. Step 3: Cross multiply
    25,305.97x = 37,959.40 × 7,775.95
  4. Step 4: Simplify right side
    25,305.97x = 295,170,206.63
  5. Step 5: Solve for x
    x = 295,170,206.63/25,305.97
  6. Step 6: Final answer
    x = 11,664.06

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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.