Home / 35,685.20-49,244.36-19,770.32

Finding the Fourth Proportional to 35,685.20, 49,244.36 and 19,770.32

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Solution

The fourth proportional to 35,685.20, 49,244.36 and 19,770.32 is: 27,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,685.20 : 49,244.36 = 19,770.32 : x
  2. Step 2: Convert to fraction form
    35,685.20/49,244.36 = 19,770.32/x
  3. Step 3: Cross multiply
    35,685.20x = 49,244.36 × 19,770.32
  4. Step 4: Simplify right side
    35,685.20x = 973,576,755.40
  5. Step 5: Solve for x
    x = 973,576,755.40/35,685.20
  6. Step 6: Final answer
    x = 27,282.37

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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.