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Finding the Fourth Proportional to 48,448.56, 72,670.80 and 16,865.88

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Solution

The fourth proportional to 48,448.56, 72,670.80 and 16,865.88 is: 25,298.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,448.56 : 72,670.80 = 16,865.88 : x
  2. Step 2: Convert to fraction form
    48,448.56/72,670.80 = 16,865.88/x
  3. Step 3: Cross multiply
    48,448.56x = 72,670.80 × 16,865.88
  4. Step 4: Simplify right side
    48,448.56x = 1,225,656,992.30
  5. Step 5: Solve for x
    x = 1,225,656,992.30/48,448.56
  6. Step 6: Final answer
    x = 25,298.11

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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.