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Finding the Fourth Proportional to 34,869.65, 48,119.55 and 18,954.50

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Solution

The fourth proportional to 34,869.65, 48,119.55 and 18,954.50 is: 26,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,869.65 : 48,119.55 = 18,954.50 : x
  2. Step 2: Convert to fraction form
    34,869.65/48,119.55 = 18,954.50/x
  3. Step 3: Cross multiply
    34,869.65x = 48,119.55 × 18,954.50
  4. Step 4: Simplify right side
    34,869.65x = 912,082,010.48
  5. Step 5: Solve for x
    x = 912,082,010.48/34,869.65
  6. Step 6: Final answer
    x = 26,156.90

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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.