Home / 47,515.43-65,548.19-31,389.04

Finding the Fourth Proportional to 47,515.43, 65,548.19 and 31,389.04

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Solution

The fourth proportional to 47,515.43, 65,548.19 and 31,389.04 is: 43,301.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,515.43 : 65,548.19 = 31,389.04 : x
  2. Step 2: Convert to fraction form
    47,515.43/65,548.19 = 31,389.04/x
  3. Step 3: Cross multiply
    47,515.43x = 65,548.19 × 31,389.04
  4. Step 4: Simplify right side
    47,515.43x = 2,057,494,757.84
  5. Step 5: Solve for x
    x = 2,057,494,757.84/47,515.43
  6. Step 6: Final answer
    x = 43,301.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.