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Finding the Fourth Proportional to 58,815.36, 81,165.36 and 31,957.68

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Solution

The fourth proportional to 58,815.36, 81,165.36 and 31,957.68 is: 44,101.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,815.36 : 81,165.36 = 31,957.68 : x
  2. Step 2: Convert to fraction form
    58,815.36/81,165.36 = 31,957.68/x
  3. Step 3: Cross multiply
    58,815.36x = 81,165.36 × 31,957.68
  4. Step 4: Simplify right side
    58,815.36x = 2,593,856,601.96
  5. Step 5: Solve for x
    x = 2,593,856,601.96/58,815.36
  6. Step 6: Final answer
    x = 44,101.69

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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.