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Finding the Fourth Proportional to 16,928.80, 25,409.40 and 14,466.40

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Solution

The fourth proportional to 16,928.80, 25,409.40 and 14,466.40 is: 21,713.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,928.80 : 25,409.40 = 14,466.40 : x
  2. Step 2: Convert to fraction form
    16,928.80/25,409.40 = 14,466.40/x
  3. Step 3: Cross multiply
    16,928.80x = 25,409.40 × 14,466.40
  4. Step 4: Simplify right side
    16,928.80x = 367,582,544.16
  5. Step 5: Solve for x
    x = 367,582,544.16/16,928.80
  6. Step 6: Final answer
    x = 21,713.44

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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.