Home / 65,568.28-90,495.84-38,709.04

Finding the Fourth Proportional to 65,568.28, 90,495.84 and 38,709.04

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Solution

The fourth proportional to 65,568.28, 90,495.84 and 38,709.04 is: 53,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,568.28 : 90,495.84 = 38,709.04 : x
  2. Step 2: Convert to fraction form
    65,568.28/90,495.84 = 38,709.04/x
  3. Step 3: Cross multiply
    65,568.28x = 90,495.84 × 38,709.04
  4. Step 4: Simplify right side
    65,568.28x = 3,503,007,090.39
  5. Step 5: Solve for x
    x = 3,503,007,090.39/65,568.28
  6. Step 6: Final answer
    x = 53,425.33

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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.