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Finding the Fourth Proportional to 52,533.70, 72,406.65 and 41,128.90

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Solution

The fourth proportional to 52,533.70, 72,406.65 and 41,128.90 is: 56,687.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,533.70 : 72,406.65 = 41,128.90 : x
  2. Step 2: Convert to fraction form
    52,533.70/72,406.65 = 41,128.90/x
  3. Step 3: Cross multiply
    52,533.70x = 72,406.65 × 41,128.90
  4. Step 4: Simplify right side
    52,533.70x = 2,978,005,867.19
  5. Step 5: Solve for x
    x = 2,978,005,867.19/52,533.70
  6. Step 6: Final answer
    x = 56,687.53

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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.