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Finding the Fourth Proportional to 48,586.97, 72,880.47 and 18,984.06

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Solution

The fourth proportional to 48,586.97, 72,880.47 and 18,984.06 is: 28,476.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,586.97 : 72,880.47 = 18,984.06 : x
  2. Step 2: Convert to fraction form
    48,586.97/72,880.47 = 18,984.06/x
  3. Step 3: Cross multiply
    48,586.97x = 72,880.47 × 18,984.06
  4. Step 4: Simplify right side
    48,586.97x = 1,383,567,215.31
  5. Step 5: Solve for x
    x = 1,383,567,215.31/48,586.97
  6. Step 6: Final answer
    x = 28,476.09

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1.5x scale

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.