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Finding the Fourth Proportional to 34,868.82, 48,119.26 and 18,953.28

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Solution

The fourth proportional to 34,868.82, 48,119.26 and 18,953.28 is: 26,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,868.82 : 48,119.26 = 18,953.28 : x
  2. Step 2: Convert to fraction form
    34,868.82/48,119.26 = 18,953.28/x
  3. Step 3: Cross multiply
    34,868.82x = 48,119.26 × 18,953.28
  4. Step 4: Simplify right side
    34,868.82x = 912,017,808.17
  5. Step 5: Solve for x
    x = 912,017,808.17/34,868.82
  6. Step 6: Final answer
    x = 26,155.68

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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.