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Finding the Fourth Proportional to 25,991.64, 35,868.78 and 14,660.10

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Solution

The fourth proportional to 25,991.64, 35,868.78 and 14,660.10 is: 20,231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.64 : 35,868.78 = 14,660.10 : x
  2. Step 2: Convert to fraction form
    25,991.64/35,868.78 = 14,660.10/x
  3. Step 3: Cross multiply
    25,991.64x = 35,868.78 × 14,660.10
  4. Step 4: Simplify right side
    25,991.64x = 525,839,901.68
  5. Step 5: Solve for x
    x = 525,839,901.68/25,991.64
  6. Step 6: Final answer
    x = 20,231.12

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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.