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Finding the Fourth Proportional to 25,917.98, 35,750.16 and 15,840.77

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Solution

The fourth proportional to 25,917.98, 35,750.16 and 15,840.77 is: 21,850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,917.98 : 35,750.16 = 15,840.77 : x
  2. Step 2: Convert to fraction form
    25,917.98/35,750.16 = 15,840.77/x
  3. Step 3: Cross multiply
    25,917.98x = 35,750.16 × 15,840.77
  4. Step 4: Simplify right side
    25,917.98x = 566,309,883.27
  5. Step 5: Solve for x
    x = 566,309,883.27/25,917.98
  6. Step 6: Final answer
    x = 21,850.08

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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.