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Finding the Fourth Proportional to 21,806.10, 32,706.03 and 7,013.06

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Solution

The fourth proportional to 21,806.10, 32,706.03 and 7,013.06 is: 10,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,806.10 : 32,706.03 = 7,013.06 : x
  2. Step 2: Convert to fraction form
    21,806.10/32,706.03 = 7,013.06/x
  3. Step 3: Cross multiply
    21,806.10x = 32,706.03 × 7,013.06
  4. Step 4: Simplify right side
    21,806.10x = 229,369,350.75
  5. Step 5: Solve for x
    x = 229,369,350.75/21,806.10
  6. Step 6: Final answer
    x = 10,518.59

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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.