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Finding the Fourth Proportional to 15,687.60, 23,524.48 and 7,369.98

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Solution

The fourth proportional to 15,687.60, 23,524.48 and 7,369.98 is: 11,051.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687.60 : 23,524.48 = 7,369.98 : x
  2. Step 2: Convert to fraction form
    15,687.60/23,524.48 = 7,369.98/x
  3. Step 3: Cross multiply
    15,687.60x = 23,524.48 × 7,369.98
  4. Step 4: Simplify right side
    15,687.60x = 173,374,947.11
  5. Step 5: Solve for x
    x = 173,374,947.11/15,687.60
  6. Step 6: Final answer
    x = 11,051.72

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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.