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Finding the Fourth Proportional to 57,872.34, 79,889.67 and 34,000.56

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Solution

The fourth proportional to 57,872.34, 79,889.67 and 34,000.56 is: 46,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,872.34 : 79,889.67 = 34,000.56 : x
  2. Step 2: Convert to fraction form
    57,872.34/79,889.67 = 34,000.56/x
  3. Step 3: Cross multiply
    57,872.34x = 79,889.67 × 34,000.56
  4. Step 4: Simplify right side
    57,872.34x = 2,716,293,518.22
  5. Step 5: Solve for x
    x = 2,716,293,518.22/57,872.34
  6. Step 6: Final answer
    x = 46,935.95

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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.