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Finding the Fourth Proportional to 84,954.83, 127,432.44 and 25,790.94

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Solution

The fourth proportional to 84,954.83, 127,432.44 and 25,790.94 is: 38,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,954.83 : 127,432.44 = 25,790.94 : x
  2. Step 2: Convert to fraction form
    84,954.83/127,432.44 = 25,790.94/x
  3. Step 3: Cross multiply
    84,954.83x = 127,432.44 × 25,790.94
  4. Step 4: Simplify right side
    84,954.83x = 3,286,602,414.09
  5. Step 5: Solve for x
    x = 3,286,602,414.09/84,954.83
  6. Step 6: Final answer
    x = 38,686.47

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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.