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Finding the Fourth Proportional to 36,643.10, 54,928.20 and 16,887.20

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Solution

The fourth proportional to 36,643.10, 54,928.20 and 16,887.20 is: 25,314.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,643.10 : 54,928.20 = 16,887.20 : x
  2. Step 2: Convert to fraction form
    36,643.10/54,928.20 = 16,887.20/x
  3. Step 3: Cross multiply
    36,643.10x = 54,928.20 × 16,887.20
  4. Step 4: Simplify right side
    36,643.10x = 927,583,499.04
  5. Step 5: Solve for x
    x = 927,583,499.04/36,643.10
  6. Step 6: Final answer
    x = 25,314.00

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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.