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Finding the Fourth Proportional to 32,693.72, 49,089.77 and 18,669.57

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Solution

The fourth proportional to 32,693.72, 49,089.77 and 18,669.57 is: 28,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,693.72 : 49,089.77 = 18,669.57 : x
  2. Step 2: Convert to fraction form
    32,693.72/49,089.77 = 18,669.57/x
  3. Step 3: Cross multiply
    32,693.72x = 49,089.77 × 18,669.57
  4. Step 4: Simplify right side
    32,693.72x = 916,484,803.95
  5. Step 5: Solve for x
    x = 916,484,803.95/32,693.72
  6. Step 6: Final answer
    x = 28,032.45

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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.