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Finding the Fourth Proportional to 13,276.56, 19,898.64 and 5,872.56

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Solution

The fourth proportional to 13,276.56, 19,898.64 and 5,872.56 is: 8,801.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.56 : 19,898.64 = 5,872.56 : x
  2. Step 2: Convert to fraction form
    13,276.56/19,898.64 = 5,872.56/x
  3. Step 3: Cross multiply
    13,276.56x = 19,898.64 × 5,872.56
  4. Step 4: Simplify right side
    13,276.56x = 116,855,957.32
  5. Step 5: Solve for x
    x = 116,855,957.32/13,276.56
  6. Step 6: Final answer
    x = 8,801.67

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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.