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Finding the Fourth Proportional to 53,285.76, 79,997.76 and 34,899.84

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Solution

The fourth proportional to 53,285.76, 79,997.76 and 34,899.84 is: 52,395.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,285.76 : 79,997.76 = 34,899.84 : x
  2. Step 2: Convert to fraction form
    53,285.76/79,997.76 = 34,899.84/x
  3. Step 3: Cross multiply
    53,285.76x = 79,997.76 × 34,899.84
  4. Step 4: Simplify right side
    53,285.76x = 2,791,909,024.36
  5. Step 5: Solve for x
    x = 2,791,909,024.36/53,285.76
  6. Step 6: Final answer
    x = 52,395.03

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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.