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Finding the Fourth Proportional to 32,113, 44,315.94 and 20,935

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Solution

The fourth proportional to 32,113, 44,315.94 and 20,935 is: 28,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,113 : 44,315.94 = 20,935 : x
  2. Step 2: Convert to fraction form
    32,113/44,315.94 = 20,935/x
  3. Step 3: Cross multiply
    32,113x = 44,315.94 × 20,935
  4. Step 4: Simplify right side
    32,113x = 927,754,203.90
  5. Step 5: Solve for x
    x = 927,754,203.90/32,113
  6. Step 6: Final answer
    x = 28,890.30

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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.