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Finding the Fourth Proportional to 12,101.16, 18,152.90 and 4,706.20

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Solution

The fourth proportional to 12,101.16, 18,152.90 and 4,706.20 is: 7,059.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,101.16 : 18,152.90 = 4,706.20 : x
  2. Step 2: Convert to fraction form
    12,101.16/18,152.90 = 4,706.20/x
  3. Step 3: Cross multiply
    12,101.16x = 18,152.90 × 4,706.20
  4. Step 4: Simplify right side
    12,101.16x = 85,431,177.98
  5. Step 5: Solve for x
    x = 85,431,177.98/12,101.16
  6. Step 6: Final answer
    x = 7,059.75

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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.