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Finding the Fourth Proportional to 55,920.40, 83,945.40 and 33,758.80

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Solution

The fourth proportional to 55,920.40, 83,945.40 and 33,758.80 is: 50,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,920.40 : 83,945.40 = 33,758.80 : x
  2. Step 2: Convert to fraction form
    55,920.40/83,945.40 = 33,758.80/x
  3. Step 3: Cross multiply
    55,920.40x = 83,945.40 × 33,758.80
  4. Step 4: Simplify right side
    55,920.40x = 2,833,895,969.52
  5. Step 5: Solve for x
    x = 2,833,895,969.52/55,920.40
  6. Step 6: Final answer
    x = 50,677.32

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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.