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Finding the Fourth Proportional to 56,751.53, 78,247.71 and 35,493.89

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Solution

The fourth proportional to 56,751.53, 78,247.71 and 35,493.89 is: 48,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,751.53 : 78,247.71 = 35,493.89 : x
  2. Step 2: Convert to fraction form
    56,751.53/78,247.71 = 35,493.89/x
  3. Step 3: Cross multiply
    56,751.53x = 78,247.71 × 35,493.89
  4. Step 4: Simplify right side
    56,751.53x = 2,777,315,220.25
  5. Step 5: Solve for x
    x = 2,777,315,220.25/56,751.53
  6. Step 6: Final answer
    x = 48,938.16

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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.