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Finding the Fourth Proportional to 35,313.25, 48,736.61 and 20,409.25

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Solution

The fourth proportional to 35,313.25, 48,736.61 and 20,409.25 is: 28,167.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,313.25 : 48,736.61 = 20,409.25 : x
  2. Step 2: Convert to fraction form
    35,313.25/48,736.61 = 20,409.25/x
  3. Step 3: Cross multiply
    35,313.25x = 48,736.61 × 20,409.25
  4. Step 4: Simplify right side
    35,313.25x = 994,677,657.64
  5. Step 5: Solve for x
    x = 994,677,657.64/35,313.25
  6. Step 6: Final answer
    x = 28,167.26

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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.