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Finding the Fourth Proportional to 14,311.32, 19,747.17 and 9,013.20

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Solution

The fourth proportional to 14,311.32, 19,747.17 and 9,013.20 is: 12,436.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311.32 : 19,747.17 = 9,013.20 : x
  2. Step 2: Convert to fraction form
    14,311.32/19,747.17 = 9,013.20/x
  3. Step 3: Cross multiply
    14,311.32x = 19,747.17 × 9,013.20
  4. Step 4: Simplify right side
    14,311.32x = 177,985,192.64
  5. Step 5: Solve for x
    x = 177,985,192.64/14,311.32
  6. Step 6: Final answer
    x = 12,436.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.