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Finding the Fourth Proportional to 35,408.36, 48,861.65 and 19,489.74

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Solution

The fourth proportional to 35,408.36, 48,861.65 and 19,489.74 is: 26,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,408.36 : 48,861.65 = 19,489.74 : x
  2. Step 2: Convert to fraction form
    35,408.36/48,861.65 = 19,489.74/x
  3. Step 3: Cross multiply
    35,408.36x = 48,861.65 × 19,489.74
  4. Step 4: Simplify right side
    35,408.36x = 952,300,757.02
  5. Step 5: Solve for x
    x = 952,300,757.02/35,408.36
  6. Step 6: Final answer
    x = 26,894.80

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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.