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Finding the Fourth Proportional to 34,870.44, 48,119.88 and 18,954.56

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Solution

The fourth proportional to 34,870.44, 48,119.88 and 18,954.56 is: 26,156.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,870.44 : 48,119.88 = 18,954.56 : x
  2. Step 2: Convert to fraction form
    34,870.44/48,119.88 = 18,954.56/x
  3. Step 3: Cross multiply
    34,870.44x = 48,119.88 × 18,954.56
  4. Step 4: Simplify right side
    34,870.44x = 912,091,152.65
  5. Step 5: Solve for x
    x = 912,091,152.65/34,870.44
  6. Step 6: Final answer
    x = 26,156.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.