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Finding the Fourth Proportional to 58,410.60, 87,619.01 and 18,964.82

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Solution

The fourth proportional to 58,410.60, 87,619.01 and 18,964.82 is: 28,448.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,410.60 : 87,619.01 = 18,964.82 : x
  2. Step 2: Convert to fraction form
    58,410.60/87,619.01 = 18,964.82/x
  3. Step 3: Cross multiply
    58,410.60x = 87,619.01 × 18,964.82
  4. Step 4: Simplify right side
    58,410.60x = 1,661,678,220.31
  5. Step 5: Solve for x
    x = 1,661,678,220.31/58,410.60
  6. Step 6: Final answer
    x = 28,448.23

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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.