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Finding the Fourth Proportional to 45,626.40, 68,446.80 and 14,464.80

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Solution

The fourth proportional to 45,626.40, 68,446.80 and 14,464.80 is: 21,699.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,626.40 : 68,446.80 = 14,464.80 : x
  2. Step 2: Convert to fraction form
    45,626.40/68,446.80 = 14,464.80/x
  3. Step 3: Cross multiply
    45,626.40x = 68,446.80 × 14,464.80
  4. Step 4: Simplify right side
    45,626.40x = 990,069,272.64
  5. Step 5: Solve for x
    x = 990,069,272.64/45,626.40
  6. Step 6: Final answer
    x = 21,699.48

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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.