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Finding the Fourth Proportional to 17,378.25, 25,940.20 and 14,928.81

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Solution

The fourth proportional to 17,378.25, 25,940.20 and 14,928.81 is: 22,283.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,378.25 : 25,940.20 = 14,928.81 : x
  2. Step 2: Convert to fraction form
    17,378.25/25,940.20 = 14,928.81/x
  3. Step 3: Cross multiply
    17,378.25x = 25,940.20 × 14,928.81
  4. Step 4: Simplify right side
    17,378.25x = 387,256,242.52
  5. Step 5: Solve for x
    x = 387,256,242.52/17,378.25
  6. Step 6: Final answer
    x = 22,283.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.