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Finding the Fourth Proportional to 57,343.44, 79,130.70 and 31,849.32

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Solution

The fourth proportional to 57,343.44, 79,130.70 and 31,849.32 is: 43,950.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,343.44 : 79,130.70 = 31,849.32 : x
  2. Step 2: Convert to fraction form
    57,343.44/79,130.70 = 31,849.32/x
  3. Step 3: Cross multiply
    57,343.44x = 79,130.70 × 31,849.32
  4. Step 4: Simplify right side
    57,343.44x = 2,520,258,986.12
  5. Step 5: Solve for x
    x = 2,520,258,986.12/57,343.44
  6. Step 6: Final answer
    x = 43,950.26

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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.