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Finding the Fourth Proportional to 19,399.68, 26,769.50 and 13,024.98

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Solution

The fourth proportional to 19,399.68, 26,769.50 and 13,024.98 is: 17,973.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.68 : 26,769.50 = 13,024.98 : x
  2. Step 2: Convert to fraction form
    19,399.68/26,769.50 = 13,024.98/x
  3. Step 3: Cross multiply
    19,399.68x = 26,769.50 × 13,024.98
  4. Step 4: Simplify right side
    19,399.68x = 348,672,202.11
  5. Step 5: Solve for x
    x = 348,672,202.11/19,399.68
  6. Step 6: Final answer
    x = 17,973.09

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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.