Home / 25,765.28-35,571.90-19,785.32

Finding the Fourth Proportional to 25,765.28, 35,571.90 and 19,785.32

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Solution

The fourth proportional to 25,765.28, 35,571.90 and 19,785.32 is: 27,315.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,765.28 : 35,571.90 = 19,785.32 : x
  2. Step 2: Convert to fraction form
    25,765.28/35,571.90 = 19,785.32/x
  3. Step 3: Cross multiply
    25,765.28x = 35,571.90 × 19,785.32
  4. Step 4: Simplify right side
    25,765.28x = 703,801,424.51
  5. Step 5: Solve for x
    x = 703,801,424.51/25,765.28
  6. Step 6: Final answer
    x = 27,315.88

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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.