Home / 38,665.60-57,998.40-34,259.20

Finding the Fourth Proportional to 38,665.60, 57,998.40 and 34,259.20

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Solution

The fourth proportional to 38,665.60, 57,998.40 and 34,259.20 is: 51,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,665.60 : 57,998.40 = 34,259.20 : x
  2. Step 2: Convert to fraction form
    38,665.60/57,998.40 = 34,259.20/x
  3. Step 3: Cross multiply
    38,665.60x = 57,998.40 × 34,259.20
  4. Step 4: Simplify right side
    38,665.60x = 1,986,978,785.28
  5. Step 5: Solve for x
    x = 1,986,978,785.28/38,665.60
  6. Step 6: Final answer
    x = 51,388.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.