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Finding the Fourth Proportional to 48,643.12, 72,935.43 and 19,025.65

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Solution

The fourth proportional to 48,643.12, 72,935.43 and 19,025.65 is: 28,527.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,643.12 : 72,935.43 = 19,025.65 : x
  2. Step 2: Convert to fraction form
    48,643.12/72,935.43 = 19,025.65/x
  3. Step 3: Cross multiply
    48,643.12x = 72,935.43 × 19,025.65
  4. Step 4: Simplify right side
    48,643.12x = 1,387,643,963.78
  5. Step 5: Solve for x
    x = 1,387,643,963.78/48,643.12
  6. Step 6: Final answer
    x = 28,527.03

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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.