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Finding the Fourth Proportional to 16,939.40, 25,409.06 and 4,627.40

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Solution

The fourth proportional to 16,939.40, 25,409.06 and 4,627.40 is: 6,941.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.40 : 25,409.06 = 4,627.40 : x
  2. Step 2: Convert to fraction form
    16,939.40/25,409.06 = 4,627.40/x
  3. Step 3: Cross multiply
    16,939.40x = 25,409.06 × 4,627.40
  4. Step 4: Simplify right side
    16,939.40x = 117,577,884.24
  5. Step 5: Solve for x
    x = 117,577,884.24/16,939.40
  6. Step 6: Final answer
    x = 6,941.09

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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.