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Finding the Fourth Proportional to 66,199.50, 99,299.25 and 16,951.50

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Solution

The fourth proportional to 66,199.50, 99,299.25 and 16,951.50 is: 25,427.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,199.50 : 99,299.25 = 16,951.50 : x
  2. Step 2: Convert to fraction form
    66,199.50/99,299.25 = 16,951.50/x
  3. Step 3: Cross multiply
    66,199.50x = 99,299.25 × 16,951.50
  4. Step 4: Simplify right side
    66,199.50x = 1,683,271,236.38
  5. Step 5: Solve for x
    x = 1,683,271,236.38/66,199.50
  6. Step 6: Final answer
    x = 25,427.25

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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.