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Finding the Fourth Proportional to 84,940.08, 127,410.48 and 25,776.48

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Solution

The fourth proportional to 84,940.08, 127,410.48 and 25,776.48 is: 38,664.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,940.08 : 127,410.48 = 25,776.48 : x
  2. Step 2: Convert to fraction form
    84,940.08/127,410.48 = 25,776.48/x
  3. Step 3: Cross multiply
    84,940.08x = 127,410.48 × 25,776.48
  4. Step 4: Simplify right side
    84,940.08x = 3,284,193,689.51
  5. Step 5: Solve for x
    x = 3,284,193,689.51/84,940.08
  6. Step 6: Final answer
    x = 38,664.83

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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.