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Finding the Fourth Proportional to 56,082.66, 84,112.10 and 21,024.90

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Solution

The fourth proportional to 56,082.66, 84,112.10 and 21,024.90 is: 31,532.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,082.66 : 84,112.10 = 21,024.90 : x
  2. Step 2: Convert to fraction form
    56,082.66/84,112.10 = 21,024.90/x
  3. Step 3: Cross multiply
    56,082.66x = 84,112.10 × 21,024.90
  4. Step 4: Simplify right side
    56,082.66x = 1,768,448,491.29
  5. Step 5: Solve for x
    x = 1,768,448,491.29/56,082.66
  6. Step 6: Final answer
    x = 31,532.89

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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.