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Finding the Fourth Proportional to 25,399, 35,049.54 and 14,068.45

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Solution

The fourth proportional to 25,399, 35,049.54 and 14,068.45 is: 19,413.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,399 : 35,049.54 = 14,068.45 : x
  2. Step 2: Convert to fraction form
    25,399/35,049.54 = 14,068.45/x
  3. Step 3: Cross multiply
    25,399x = 35,049.54 × 14,068.45
  4. Step 4: Simplify right side
    25,399x = 493,092,701.01
  5. Step 5: Solve for x
    x = 493,092,701.01/25,399
  6. Step 6: Final answer
    x = 19,413.86

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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.