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Finding the Fourth Proportional to 43,809.26, 65,674.46 and 15,722.71

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Solution

The fourth proportional to 43,809.26, 65,674.46 and 15,722.71 is: 23,569.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,809.26 : 65,674.46 = 15,722.71 : x
  2. Step 2: Convert to fraction form
    43,809.26/65,674.46 = 15,722.71/x
  3. Step 3: Cross multiply
    43,809.26x = 65,674.46 × 15,722.71
  4. Step 4: Simplify right side
    43,809.26x = 1,032,580,364.11
  5. Step 5: Solve for x
    x = 1,032,580,364.11/43,809.26
  6. Step 6: Final answer
    x = 23,569.91

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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.