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Finding the Fourth Proportional to 32,913.46, 49,360.76 and 10,728.78

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Solution

The fourth proportional to 32,913.46, 49,360.76 and 10,728.78 is: 16,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,913.46 : 49,360.76 = 10,728.78 : x
  2. Step 2: Convert to fraction form
    32,913.46/49,360.76 = 10,728.78/x
  3. Step 3: Cross multiply
    32,913.46x = 49,360.76 × 10,728.78
  4. Step 4: Simplify right side
    32,913.46x = 529,580,734.67
  5. Step 5: Solve for x
    x = 529,580,734.67/32,913.46
  6. Step 6: Final answer
    x = 16,090.10

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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.