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Finding the Fourth Proportional to 70,396.49, 105,595.09 and 17,806.03

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Solution

The fourth proportional to 70,396.49, 105,595.09 and 17,806.03 is: 26,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,396.49 : 105,595.09 = 17,806.03 : x
  2. Step 2: Convert to fraction form
    70,396.49/105,595.09 = 17,806.03/x
  3. Step 3: Cross multiply
    70,396.49x = 105,595.09 × 17,806.03
  4. Step 4: Simplify right side
    70,396.49x = 1,880,229,031.89
  5. Step 5: Solve for x
    x = 1,880,229,031.89/70,396.49
  6. Step 6: Final answer
    x = 26,709.13

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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.