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Finding the Fourth Proportional to 25,940.44, 35,798.53 and 15,868.70

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Solution

The fourth proportional to 25,940.44, 35,798.53 and 15,868.70 is: 21,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,940.44 : 35,798.53 = 15,868.70 : x
  2. Step 2: Convert to fraction form
    25,940.44/35,798.53 = 15,868.70/x
  3. Step 3: Cross multiply
    25,940.44x = 35,798.53 × 15,868.70
  4. Step 4: Simplify right side
    25,940.44x = 568,076,133.01
  5. Step 5: Solve for x
    x = 568,076,133.01/25,940.44
  6. Step 6: Final answer
    x = 21,899.25

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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.