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Finding the Fourth Proportional to 16,885.50, 25,310.97 and 7,030.50

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Solution

The fourth proportional to 16,885.50, 25,310.97 and 7,030.50 is: 10,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.50 : 25,310.97 = 7,030.50 : x
  2. Step 2: Convert to fraction form
    16,885.50/25,310.97 = 7,030.50/x
  3. Step 3: Cross multiply
    16,885.50x = 25,310.97 × 7,030.50
  4. Step 4: Simplify right side
    16,885.50x = 177,948,774.59
  5. Step 5: Solve for x
    x = 177,948,774.59/16,885.50
  6. Step 6: Final answer
    x = 10,538.56

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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.