Home / 39,645.14-54,778.29-38,226.02

Finding the Fourth Proportional to 39,645.14, 54,778.29 and 38,226.02

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Solution

The fourth proportional to 39,645.14, 54,778.29 and 38,226.02 is: 52,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,645.14 : 54,778.29 = 38,226.02 : x
  2. Step 2: Convert to fraction form
    39,645.14/54,778.29 = 38,226.02/x
  3. Step 3: Cross multiply
    39,645.14x = 54,778.29 × 38,226.02
  4. Step 4: Simplify right side
    39,645.14x = 2,093,956,009.11
  5. Step 5: Solve for x
    x = 2,093,956,009.11/39,645.14
  6. Step 6: Final answer
    x = 52,817.47

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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.