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Finding the Fourth Proportional to 16,984.70, 25,443.90 and 11,123.54

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Solution

The fourth proportional to 16,984.70, 25,443.90 and 11,123.54 is: 16,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,984.70 : 25,443.90 = 11,123.54 : x
  2. Step 2: Convert to fraction form
    16,984.70/25,443.90 = 11,123.54/x
  3. Step 3: Cross multiply
    16,984.70x = 25,443.90 × 11,123.54
  4. Step 4: Simplify right side
    16,984.70x = 283,026,239.41
  5. Step 5: Solve for x
    x = 283,026,239.41/16,984.70
  6. Step 6: Final answer
    x = 16,663.60

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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.