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Finding the Fourth Proportional to 43,503.36, 65,264.74 and 13,922.96

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Solution

The fourth proportional to 43,503.36, 65,264.74 and 13,922.96 is: 20,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,503.36 : 65,264.74 = 13,922.96 : x
  2. Step 2: Convert to fraction form
    43,503.36/65,264.74 = 13,922.96/x
  3. Step 3: Cross multiply
    43,503.36x = 65,264.74 × 13,922.96
  4. Step 4: Simplify right side
    43,503.36x = 908,678,364.43
  5. Step 5: Solve for x
    x = 908,678,364.43/43,503.36
  6. Step 6: Final answer
    x = 20,887.54

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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.