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Finding the Fourth Proportional to 16,984.58, 25,486.79 and 7,123.03

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Solution

The fourth proportional to 16,984.58, 25,486.79 and 7,123.03 is: 10,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,984.58 : 25,486.79 = 7,123.03 : x
  2. Step 2: Convert to fraction form
    16,984.58/25,486.79 = 7,123.03/x
  3. Step 3: Cross multiply
    16,984.58x = 25,486.79 × 7,123.03
  4. Step 4: Simplify right side
    16,984.58x = 181,543,070.44
  5. Step 5: Solve for x
    x = 181,543,070.44/16,984.58
  6. Step 6: Final answer
    x = 10,688.70

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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.