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Finding the Fourth Proportional to 19,404, 26,777.52 and 10,572

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Solution

The fourth proportional to 19,404, 26,777.52 and 10,572 is: 14,589.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,404 : 26,777.52 = 10,572 : x
  2. Step 2: Convert to fraction form
    19,404/26,777.52 = 10,572/x
  3. Step 3: Cross multiply
    19,404x = 26,777.52 × 10,572
  4. Step 4: Simplify right side
    19,404x = 283,091,941.44
  5. Step 5: Solve for x
    x = 283,091,941.44/19,404
  6. Step 6: Final answer
    x = 14,589.36

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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.