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Finding the Fourth Proportional to 49,045.40, 73,577.70 and 20,965.40

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Solution

The fourth proportional to 49,045.40, 73,577.70 and 20,965.40 is: 31,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,045.40 : 73,577.70 = 20,965.40 : x
  2. Step 2: Convert to fraction form
    49,045.40/73,577.70 = 20,965.40/x
  3. Step 3: Cross multiply
    49,045.40x = 73,577.70 × 20,965.40
  4. Step 4: Simplify right side
    49,045.40x = 1,542,585,911.58
  5. Step 5: Solve for x
    x = 1,542,585,911.58/49,045.40
  6. Step 6: Final answer
    x = 31,452.20

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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.