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Finding the Fourth Proportional to 25,408.40, 35,623.60 and 25,408.40

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Solution

The fourth proportional to 25,408.40, 35,623.60 and 25,408.40 is: 35,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,408.40 : 35,623.60 = 25,408.40 : x
  2. Step 2: Convert to fraction form
    25,408.40/35,623.60 = 25,408.40/x
  3. Step 3: Cross multiply
    25,408.40x = 35,623.60 × 25,408.40
  4. Step 4: Simplify right side
    25,408.40x = 905,138,678.24
  5. Step 5: Solve for x
    x = 905,138,678.24/25,408.40
  6. Step 6: Final answer
    x = 35,623.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.