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Finding the Fourth Proportional to 25,991.56, 35,870.48 and 14,660.48

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Solution

The fourth proportional to 25,991.56, 35,870.48 and 14,660.48 is: 20,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.56 : 35,870.48 = 14,660.48 : x
  2. Step 2: Convert to fraction form
    25,991.56/35,870.48 = 14,660.48/x
  3. Step 3: Cross multiply
    25,991.56x = 35,870.48 × 14,660.48
  4. Step 4: Simplify right side
    25,991.56x = 525,878,454.63
  5. Step 5: Solve for x
    x = 525,878,454.63/25,991.56
  6. Step 6: Final answer
    x = 20,232.66

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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.