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Finding the Fourth Proportional to 30,848.65, 46,272.94 and 7,475.09

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Solution

The fourth proportional to 30,848.65, 46,272.94 and 7,475.09 is: 11,212.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,848.65 : 46,272.94 = 7,475.09 : x
  2. Step 2: Convert to fraction form
    30,848.65/46,272.94 = 7,475.09/x
  3. Step 3: Cross multiply
    30,848.65x = 46,272.94 × 7,475.09
  4. Step 4: Simplify right side
    30,848.65x = 345,894,141.01
  5. Step 5: Solve for x
    x = 345,894,141.01/30,848.65
  6. Step 6: Final answer
    x = 11,212.62

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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.