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Finding the Fourth Proportional to 56,469.99, 84,683.40 and 19,020.00

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Solution

The fourth proportional to 56,469.99, 84,683.40 and 19,020.00 is: 28,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,469.99 : 84,683.40 = 19,020.00 : x
  2. Step 2: Convert to fraction form
    56,469.99/84,683.40 = 19,020.00/x
  3. Step 3: Cross multiply
    56,469.99x = 84,683.40 × 19,020.00
  4. Step 4: Simplify right side
    56,469.99x = 1,610,678,091.39
  5. Step 5: Solve for x
    x = 1,610,678,091.39/56,469.99
  6. Step 6: Final answer
    x = 28,522.72

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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.