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Finding the Fourth Proportional to 25,991.55, 35,868.12 and 14,054.78

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Solution

The fourth proportional to 25,991.55, 35,868.12 and 14,054.78 is: 19,395.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.55 : 35,868.12 = 14,054.78 : x
  2. Step 2: Convert to fraction form
    25,991.55/35,868.12 = 14,054.78/x
  3. Step 3: Cross multiply
    25,991.55x = 35,868.12 × 14,054.78
  4. Step 4: Simplify right side
    25,991.55x = 504,118,572.58
  5. Step 5: Solve for x
    x = 504,118,572.58/25,991.55
  6. Step 6: Final answer
    x = 19,395.48

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1.5x scale

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.