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Finding the Fourth Proportional to 49,322.40, 73,983.60 and 19,744.80

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Solution

The fourth proportional to 49,322.40, 73,983.60 and 19,744.80 is: 29,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,322.40 : 73,983.60 = 19,744.80 : x
  2. Step 2: Convert to fraction form
    49,322.40/73,983.60 = 19,744.80/x
  3. Step 3: Cross multiply
    49,322.40x = 73,983.60 × 19,744.80
  4. Step 4: Simplify right side
    49,322.40x = 1,460,791,385.28
  5. Step 5: Solve for x
    x = 1,460,791,385.28/49,322.40
  6. Step 6: Final answer
    x = 29,617.20

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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.