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Finding the Fourth Proportional to 58,647.68, 87,968.64 and 19,223.36

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Solution

The fourth proportional to 58,647.68, 87,968.64 and 19,223.36 is: 28,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,647.68 : 87,968.64 = 19,223.36 : x
  2. Step 2: Convert to fraction form
    58,647.68/87,968.64 = 19,223.36/x
  3. Step 3: Cross multiply
    58,647.68x = 87,968.64 × 19,223.36
  4. Step 4: Simplify right side
    58,647.68x = 1,691,052,835.43
  5. Step 5: Solve for x
    x = 1,691,052,835.43/58,647.68
  6. Step 6: Final answer
    x = 28,834.10

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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.