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Finding the Fourth Proportional to 62,687.64, 93,887.46 and 52,699.80

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Solution

The fourth proportional to 62,687.64, 93,887.46 and 52,699.80 is: 78,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,687.64 : 93,887.46 = 52,699.80 : x
  2. Step 2: Convert to fraction form
    62,687.64/93,887.46 = 52,699.80/x
  3. Step 3: Cross multiply
    62,687.64x = 93,887.46 × 52,699.80
  4. Step 4: Simplify right side
    62,687.64x = 4,947,850,364.51
  5. Step 5: Solve for x
    x = 4,947,850,364.51/62,687.64
  6. Step 6: Final answer
    x = 78,928.64

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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.