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Finding the Fourth Proportional to 58,239.48, 80,347.68 and 32,740

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Solution

The fourth proportional to 58,239.48, 80,347.68 and 32,740 is: 45,168.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,239.48 : 80,347.68 = 32,740 : x
  2. Step 2: Convert to fraction form
    58,239.48/80,347.68 = 32,740/x
  3. Step 3: Cross multiply
    58,239.48x = 80,347.68 × 32,740
  4. Step 4: Simplify right side
    58,239.48x = 2,630,583,043.20
  5. Step 5: Solve for x
    x = 2,630,583,043.20/58,239.48
  6. Step 6: Final answer
    x = 45,168.38

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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.