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Finding the Fourth Proportional to 56,491.91, 84,738.35 and 14,372.03

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Solution

The fourth proportional to 56,491.91, 84,738.35 and 14,372.03 is: 21,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.91 : 84,738.35 = 14,372.03 : x
  2. Step 2: Convert to fraction form
    56,491.91/84,738.35 = 14,372.03/x
  3. Step 3: Cross multiply
    56,491.91x = 84,738.35 × 14,372.03
  4. Step 4: Simplify right side
    56,491.91x = 1,217,862,356.13
  5. Step 5: Solve for x
    x = 1,217,862,356.13/56,491.91
  6. Step 6: Final answer
    x = 21,558.17

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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.