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Finding the Fourth Proportional to 35,433.01, 48,893.46 and 20,321.50

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Solution

The fourth proportional to 35,433.01, 48,893.46 and 20,321.50 is: 28,041.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,433.01 : 48,893.46 = 20,321.50 : x
  2. Step 2: Convert to fraction form
    35,433.01/48,893.46 = 20,321.50/x
  3. Step 3: Cross multiply
    35,433.01x = 48,893.46 × 20,321.50
  4. Step 4: Simplify right side
    35,433.01x = 993,588,447.39
  5. Step 5: Solve for x
    x = 993,588,447.39/35,433.01
  6. Step 6: Final answer
    x = 28,041.32

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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.