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Finding the Fourth Proportional to 14,446.61, 21,675.29 and 8,835.78

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Solution

The fourth proportional to 14,446.61, 21,675.29 and 8,835.78 is: 13,256.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,446.61 : 21,675.29 = 8,835.78 : x
  2. Step 2: Convert to fraction form
    14,446.61/21,675.29 = 8,835.78/x
  3. Step 3: Cross multiply
    14,446.61x = 21,675.29 × 8,835.78
  4. Step 4: Simplify right side
    14,446.61x = 191,518,049.70
  5. Step 5: Solve for x
    x = 191,518,049.70/14,446.61
  6. Step 6: Final answer
    x = 13,256.96

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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.