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Finding the Fourth Proportional to 58,797.79, 81,139.58 and 31,939.70

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Solution

The fourth proportional to 58,797.79, 81,139.58 and 31,939.70 is: 44,076.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,797.79 : 81,139.58 = 31,939.70 : x
  2. Step 2: Convert to fraction form
    58,797.79/81,139.58 = 31,939.70/x
  3. Step 3: Cross multiply
    58,797.79x = 81,139.58 × 31,939.70
  4. Step 4: Simplify right side
    58,797.79x = 2,591,573,683.63
  5. Step 5: Solve for x
    x = 2,591,573,683.63/58,797.79
  6. Step 6: Final answer
    x = 44,076.04

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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.