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Finding the Fourth Proportional to 58,693.64, 80,870.47 and 39,797.96

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Solution

The fourth proportional to 58,693.64, 80,870.47 and 39,797.96 is: 54,835.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,693.64 : 80,870.47 = 39,797.96 : x
  2. Step 2: Convert to fraction form
    58,693.64/80,870.47 = 39,797.96/x
  3. Step 3: Cross multiply
    58,693.64x = 80,870.47 × 39,797.96
  4. Step 4: Simplify right side
    58,693.64x = 3,218,479,226.39
  5. Step 5: Solve for x
    x = 3,218,479,226.39/58,693.64
  6. Step 6: Final answer
    x = 54,835.23

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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.