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Finding the Fourth Proportional to 16,878.75, 25,300.85 and 7,023.75

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Solution

The fourth proportional to 16,878.75, 25,300.85 and 7,023.75 is: 10,528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.75 : 25,300.85 = 7,023.75 : x
  2. Step 2: Convert to fraction form
    16,878.75/25,300.85 = 7,023.75/x
  3. Step 3: Cross multiply
    16,878.75x = 25,300.85 × 7,023.75
  4. Step 4: Simplify right side
    16,878.75x = 177,706,810.07
  5. Step 5: Solve for x
    x = 177,706,810.07/16,878.75
  6. Step 6: Final answer
    x = 10,528.43

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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.