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Finding the Fourth Proportional to 25,399.81, 35,050.20 and 14,068.65

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Solution

The fourth proportional to 25,399.81, 35,050.20 and 14,068.65 is: 19,413.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,399.81 : 35,050.20 = 14,068.65 : x
  2. Step 2: Convert to fraction form
    25,399.81/35,050.20 = 14,068.65/x
  3. Step 3: Cross multiply
    25,399.81x = 35,050.20 × 14,068.65
  4. Step 4: Simplify right side
    25,399.81x = 493,108,798.96
  5. Step 5: Solve for x
    x = 493,108,798.96/25,399.81
  6. Step 6: Final answer
    x = 19,413.88

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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.