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Finding the Fourth Proportional to 48,612, 72,930.96 and 23,988

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Solution

The fourth proportional to 48,612, 72,930.96 and 23,988 is: 35,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,612 : 72,930.96 = 23,988 : x
  2. Step 2: Convert to fraction form
    48,612/72,930.96 = 23,988/x
  3. Step 3: Cross multiply
    48,612x = 72,930.96 × 23,988
  4. Step 4: Simplify right side
    48,612x = 1,749,467,868.48
  5. Step 5: Solve for x
    x = 1,749,467,868.48/48,612
  6. Step 6: Final answer
    x = 35,988.40

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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.