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Finding the Fourth Proportional to 58,710.25, 81,027.78 and 32,878.64

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Solution

The fourth proportional to 58,710.25, 81,027.78 and 32,878.64 is: 45,376.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,710.25 : 81,027.78 = 32,878.64 : x
  2. Step 2: Convert to fraction form
    58,710.25/81,027.78 = 32,878.64/x
  3. Step 3: Cross multiply
    58,710.25x = 81,027.78 × 32,878.64
  4. Step 4: Simplify right side
    58,710.25x = 2,664,082,803.48
  5. Step 5: Solve for x
    x = 2,664,082,803.48/58,710.25
  6. Step 6: Final answer
    x = 45,376.79

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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.