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Finding the Fourth Proportional to 9,543.60, 14,295.78 and 5,638.50

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Solution

The fourth proportional to 9,543.60, 14,295.78 and 5,638.50 is: 8,446.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,543.60 : 14,295.78 = 5,638.50 : x
  2. Step 2: Convert to fraction form
    9,543.60/14,295.78 = 5,638.50/x
  3. Step 3: Cross multiply
    9,543.60x = 14,295.78 × 5,638.50
  4. Step 4: Simplify right side
    9,543.60x = 80,606,755.53
  5. Step 5: Solve for x
    x = 80,606,755.53/9,543.60
  6. Step 6: Final answer
    x = 8,446.16

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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.