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Finding the Fourth Proportional to 39,799.60, 59,699.40 and 33,384.40

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Solution

The fourth proportional to 39,799.60, 59,699.40 and 33,384.40 is: 50,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,799.60 : 59,699.40 = 33,384.40 : x
  2. Step 2: Convert to fraction form
    39,799.60/59,699.40 = 33,384.40/x
  3. Step 3: Cross multiply
    39,799.60x = 59,699.40 × 33,384.40
  4. Step 4: Simplify right side
    39,799.60x = 1,993,028,649.36
  5. Step 5: Solve for x
    x = 1,993,028,649.36/39,799.60
  6. Step 6: Final answer
    x = 50,076.60

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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.