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Finding the Fourth Proportional to 43,503.60, 65,265.10 and 13,923.22

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Solution

The fourth proportional to 43,503.60, 65,265.10 and 13,923.22 is: 20,887.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,503.60 : 65,265.10 = 13,923.22 : x
  2. Step 2: Convert to fraction form
    43,503.60/65,265.10 = 13,923.22/x
  3. Step 3: Cross multiply
    43,503.60x = 65,265.10 × 13,923.22
  4. Step 4: Simplify right side
    43,503.60x = 908,700,345.62
  5. Step 5: Solve for x
    x = 908,700,345.62/43,503.60
  6. Step 6: Final answer
    x = 20,887.93

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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.