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Finding the Fourth Proportional to 39,996.40, 59,943.40 and 30,716.40

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Solution

The fourth proportional to 39,996.40, 59,943.40 and 30,716.40 is: 46,035.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,996.40 : 59,943.40 = 30,716.40 : x
  2. Step 2: Convert to fraction form
    39,996.40/59,943.40 = 30,716.40/x
  3. Step 3: Cross multiply
    39,996.40x = 59,943.40 × 30,716.40
  4. Step 4: Simplify right side
    39,996.40x = 1,841,245,451.76
  5. Step 5: Solve for x
    x = 1,841,245,451.76/39,996.40
  6. Step 6: Final answer
    x = 46,035.28

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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.