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Finding the Fourth Proportional to 23,242.34, 34,806.11 and 12,158.35

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Solution

The fourth proportional to 23,242.34, 34,806.11 and 12,158.35 is: 18,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,242.34 : 34,806.11 = 12,158.35 : x
  2. Step 2: Convert to fraction form
    23,242.34/34,806.11 = 12,158.35/x
  3. Step 3: Cross multiply
    23,242.34x = 34,806.11 × 12,158.35
  4. Step 4: Simplify right side
    23,242.34x = 423,184,915.50
  5. Step 5: Solve for x
    x = 423,184,915.50/23,242.34
  6. Step 6: Final answer
    x = 18,207.50

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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.