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Finding the Fourth Proportional to 25,409.40, 35,043.30 and 20,094.99

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Solution

The fourth proportional to 25,409.40, 35,043.30 and 20,094.99 is: 27,713.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,409.40 : 35,043.30 = 20,094.99 : x
  2. Step 2: Convert to fraction form
    25,409.40/35,043.30 = 20,094.99/x
  3. Step 3: Cross multiply
    25,409.40x = 35,043.30 × 20,094.99
  4. Step 4: Simplify right side
    25,409.40x = 704,194,763.07
  5. Step 5: Solve for x
    x = 704,194,763.07/25,409.40
  6. Step 6: Final answer
    x = 27,713.95

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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.