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Finding the Fourth Proportional to 48,515.34, 72,775.08 and 16,928.58

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Solution

The fourth proportional to 48,515.34, 72,775.08 and 16,928.58 is: 25,393.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,515.34 : 72,775.08 = 16,928.58 : x
  2. Step 2: Convert to fraction form
    48,515.34/72,775.08 = 16,928.58/x
  3. Step 3: Cross multiply
    48,515.34x = 72,775.08 × 16,928.58
  4. Step 4: Simplify right side
    48,515.34x = 1,231,978,763.79
  5. Step 5: Solve for x
    x = 1,231,978,763.79/48,515.34
  6. Step 6: Final answer
    x = 25,393.59

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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.