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Finding the Fourth Proportional to 51,393.16, 70,927.14 and 31,245.22

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Solution

The fourth proportional to 51,393.16, 70,927.14 and 31,245.22 is: 43,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,393.16 : 70,927.14 = 31,245.22 : x
  2. Step 2: Convert to fraction form
    51,393.16/70,927.14 = 31,245.22/x
  3. Step 3: Cross multiply
    51,393.16x = 70,927.14 × 31,245.22
  4. Step 4: Simplify right side
    51,393.16x = 2,216,134,093.27
  5. Step 5: Solve for x
    x = 2,216,134,093.27/51,393.16
  6. Step 6: Final answer
    x = 43,121.19

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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.