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Finding the Fourth Proportional to 67,927.64, 101,858.68 and 28,474.16

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Solution

The fourth proportional to 67,927.64, 101,858.68 and 28,474.16 is: 42,697.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,927.64 : 101,858.68 = 28,474.16 : x
  2. Step 2: Convert to fraction form
    67,927.64/101,858.68 = 28,474.16/x
  3. Step 3: Cross multiply
    67,927.64x = 101,858.68 × 28,474.16
  4. Step 4: Simplify right side
    67,927.64x = 2,900,339,700.04
  5. Step 5: Solve for x
    x = 2,900,339,700.04/67,927.64
  6. Step 6: Final answer
    x = 42,697.49

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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.