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Finding the Fourth Proportional to 13,238.76, 19,858.01 and 4,004.76

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Solution

The fourth proportional to 13,238.76, 19,858.01 and 4,004.76 is: 6,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.76 : 19,858.01 = 4,004.76 : x
  2. Step 2: Convert to fraction form
    13,238.76/19,858.01 = 4,004.76/x
  3. Step 3: Cross multiply
    13,238.76x = 19,858.01 × 4,004.76
  4. Step 4: Simplify right side
    13,238.76x = 79,526,544.10
  5. Step 5: Solve for x
    x = 79,526,544.10/13,238.76
  6. Step 6: Final answer
    x = 6,007.10

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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.