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Finding the Fourth Proportional to 92,679.34, 127,900.52 and 51,286.82

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Solution

The fourth proportional to 92,679.34, 127,900.52 and 51,286.82 is: 70,777.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,679.34 : 127,900.52 = 51,286.82 : x
  2. Step 2: Convert to fraction form
    92,679.34/127,900.52 = 51,286.82/x
  3. Step 3: Cross multiply
    92,679.34x = 127,900.52 × 51,286.82
  4. Step 4: Simplify right side
    92,679.34x = 6,559,610,962.98
  5. Step 5: Solve for x
    x = 6,559,610,962.98/92,679.34
  6. Step 6: Final answer
    x = 70,777.49

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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.