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Finding the Fourth Proportional to 32,442.98, 48,684.96 and 12,721.01

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Solution

The fourth proportional to 32,442.98, 48,684.96 and 12,721.01 is: 19,089.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,442.98 : 48,684.96 = 12,721.01 : x
  2. Step 2: Convert to fraction form
    32,442.98/48,684.96 = 12,721.01/x
  3. Step 3: Cross multiply
    32,442.98x = 48,684.96 × 12,721.01
  4. Step 4: Simplify right side
    32,442.98x = 619,321,619.58
  5. Step 5: Solve for x
    x = 619,321,619.58/32,442.98
  6. Step 6: Final answer
    x = 19,089.54

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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.