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Finding the Fourth Proportional to 9,372.53, 14,042.30 and 8,355.57

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Solution

The fourth proportional to 9,372.53, 14,042.30 and 8,355.57 is: 12,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.53 : 14,042.30 = 8,355.57 : x
  2. Step 2: Convert to fraction form
    9,372.53/14,042.30 = 8,355.57/x
  3. Step 3: Cross multiply
    9,372.53x = 14,042.30 × 8,355.57
  4. Step 4: Simplify right side
    9,372.53x = 117,331,378.83
  5. Step 5: Solve for x
    x = 117,331,378.83/9,372.53
  6. Step 6: Final answer
    x = 12,518.65

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1.5x scale

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.