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Finding the Fourth Proportional to 36,821.70, 55,216.35 and 14,627.70

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Solution

The fourth proportional to 36,821.70, 55,216.35 and 14,627.70 is: 21,935.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,821.70 : 55,216.35 = 14,627.70 : x
  2. Step 2: Convert to fraction form
    36,821.70/55,216.35 = 14,627.70/x
  3. Step 3: Cross multiply
    36,821.70x = 55,216.35 × 14,627.70
  4. Step 4: Simplify right side
    36,821.70x = 807,688,202.90
  5. Step 5: Solve for x
    x = 807,688,202.90/36,821.70
  6. Step 6: Final answer
    x = 21,935.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.