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Finding the Fourth Proportional to 25,003.50, 34,504.85 and 13,825.50

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Solution

The fourth proportional to 25,003.50, 34,504.85 and 13,825.50 is: 19,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,003.50 : 34,504.85 = 13,825.50 : x
  2. Step 2: Convert to fraction form
    25,003.50/34,504.85 = 13,825.50/x
  3. Step 3: Cross multiply
    25,003.50x = 34,504.85 × 13,825.50
  4. Step 4: Simplify right side
    25,003.50x = 477,046,803.68
  5. Step 5: Solve for x
    x = 477,046,803.68/25,003.50
  6. Step 6: Final answer
    x = 19,079.20

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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.