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Finding the Fourth Proportional to 36,896.03, 50,916.28 and 20,980.48

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Solution

The fourth proportional to 36,896.03, 50,916.28 and 20,980.48 is: 28,952.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,896.03 : 50,916.28 = 20,980.48 : x
  2. Step 2: Convert to fraction form
    36,896.03/50,916.28 = 20,980.48/x
  3. Step 3: Cross multiply
    36,896.03x = 50,916.28 × 20,980.48
  4. Step 4: Simplify right side
    36,896.03x = 1,068,247,994.21
  5. Step 5: Solve for x
    x = 1,068,247,994.21/36,896.03
  6. Step 6: Final answer
    x = 28,952.93

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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.