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Finding the Fourth Proportional to 82,573.28, 113,960.76 and 49,039.28

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Solution

The fourth proportional to 82,573.28, 113,960.76 and 49,039.28 is: 67,679.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,573.28 : 113,960.76 = 49,039.28 : x
  2. Step 2: Convert to fraction form
    82,573.28/113,960.76 = 49,039.28/x
  3. Step 3: Cross multiply
    82,573.28x = 113,960.76 × 49,039.28
  4. Step 4: Simplify right side
    82,573.28x = 5,588,553,618.65
  5. Step 5: Solve for x
    x = 5,588,553,618.65/82,573.28
  6. Step 6: Final answer
    x = 67,679.93

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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.