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Finding the Fourth Proportional to 62,818.82, 94,242.12 and 20,697.20

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Solution

The fourth proportional to 62,818.82, 94,242.12 and 20,697.20 is: 31,050.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,818.82 : 94,242.12 = 20,697.20 : x
  2. Step 2: Convert to fraction form
    62,818.82/94,242.12 = 20,697.20/x
  3. Step 3: Cross multiply
    62,818.82x = 94,242.12 × 20,697.20
  4. Step 4: Simplify right side
    62,818.82x = 1,950,547,534.85
  5. Step 5: Solve for x
    x = 1,950,547,534.85/62,818.82
  6. Step 6: Final answer
    x = 31,050.37

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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.