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Finding the Fourth Proportional to 58,452.48, 87,699.08 and 18,477.58

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Solution

The fourth proportional to 58,452.48, 87,699.08 and 18,477.58 is: 27,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,452.48 : 87,699.08 = 18,477.58 : x
  2. Step 2: Convert to fraction form
    58,452.48/87,699.08 = 18,477.58/x
  3. Step 3: Cross multiply
    58,452.48x = 87,699.08 × 18,477.58
  4. Step 4: Simplify right side
    58,452.48x = 1,620,466,766.63
  5. Step 5: Solve for x
    x = 1,620,466,766.63/58,452.48
  6. Step 6: Final answer
    x = 27,722.81

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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.