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Finding the Fourth Proportional to 48,660.52, 72,990.62 and 11,724.52

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Solution

The fourth proportional to 48,660.52, 72,990.62 and 11,724.52 is: 17,586.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,660.52 : 72,990.62 = 11,724.52 : x
  2. Step 2: Convert to fraction form
    48,660.52/72,990.62 = 11,724.52/x
  3. Step 3: Cross multiply
    48,660.52x = 72,990.62 × 11,724.52
  4. Step 4: Simplify right side
    48,660.52x = 855,779,984.00
  5. Step 5: Solve for x
    x = 855,779,984.00/48,660.52
  6. Step 6: Final answer
    x = 17,586.74

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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.