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Finding the Fourth Proportional to 35,316.75, 48,741.44 and 20,412.75

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Solution

The fourth proportional to 35,316.75, 48,741.44 and 20,412.75 is: 28,172.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,316.75 : 48,741.44 = 20,412.75 : x
  2. Step 2: Convert to fraction form
    35,316.75/48,741.44 = 20,412.75/x
  3. Step 3: Cross multiply
    35,316.75x = 48,741.44 × 20,412.75
  4. Step 4: Simplify right side
    35,316.75x = 994,946,727.30
  5. Step 5: Solve for x
    x = 994,946,727.30/35,316.75
  6. Step 6: Final answer
    x = 28,172.09

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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.