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Finding the Fourth Proportional to 16,803.80, 25,205.70 and 15,536.60

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Solution

The fourth proportional to 16,803.80, 25,205.70 and 15,536.60 is: 23,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,803.80 : 25,205.70 = 15,536.60 : x
  2. Step 2: Convert to fraction form
    16,803.80/25,205.70 = 15,536.60/x
  3. Step 3: Cross multiply
    16,803.80x = 25,205.70 × 15,536.60
  4. Step 4: Simplify right side
    16,803.80x = 391,610,878.62
  5. Step 5: Solve for x
    x = 391,610,878.62/16,803.80
  6. Step 6: Final answer
    x = 23,304.90

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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.