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Finding the Fourth Proportional to 34,518.88, 51,712.35 and 28,932.31

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Solution

The fourth proportional to 34,518.88, 51,712.35 and 28,932.31 is: 43,343.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,518.88 : 51,712.35 = 28,932.31 : x
  2. Step 2: Convert to fraction form
    34,518.88/51,712.35 = 28,932.31/x
  3. Step 3: Cross multiply
    34,518.88x = 51,712.35 × 28,932.31
  4. Step 4: Simplify right side
    34,518.88x = 1,496,157,741.03
  5. Step 5: Solve for x
    x = 1,496,157,741.03/34,518.88
  6. Step 6: Final answer
    x = 43,343.17

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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.