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Finding the Fourth Proportional to 48,492.65, 72,815.48 and 28,858.84

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Solution

The fourth proportional to 48,492.65, 72,815.48 and 28,858.84 is: 43,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,492.65 : 72,815.48 = 28,858.84 : x
  2. Step 2: Convert to fraction form
    48,492.65/72,815.48 = 28,858.84/x
  3. Step 3: Cross multiply
    48,492.65x = 72,815.48 × 28,858.84
  4. Step 4: Simplify right side
    48,492.65x = 2,101,370,286.84
  5. Step 5: Solve for x
    x = 2,101,370,286.84/48,492.65
  6. Step 6: Final answer
    x = 43,333.79

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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.