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Finding the Fourth Proportional to 82,485.92, 123,721.84 and 26,323.76

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Solution

The fourth proportional to 82,485.92, 123,721.84 and 26,323.76 is: 39,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,485.92 : 123,721.84 = 26,323.76 : x
  2. Step 2: Convert to fraction form
    82,485.92/123,721.84 = 26,323.76/x
  3. Step 3: Cross multiply
    82,485.92x = 123,721.84 × 26,323.76
  4. Step 4: Simplify right side
    82,485.92x = 3,256,824,022.92
  5. Step 5: Solve for x
    x = 3,256,824,022.92/82,485.92
  6. Step 6: Final answer
    x = 39,483.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.