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Finding the Fourth Proportional to 49,343.80, 74,015.70 and 43,706.20

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Solution

The fourth proportional to 49,343.80, 74,015.70 and 43,706.20 is: 65,559.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,343.80 : 74,015.70 = 43,706.20 : x
  2. Step 2: Convert to fraction form
    49,343.80/74,015.70 = 43,706.20/x
  3. Step 3: Cross multiply
    49,343.80x = 74,015.70 × 43,706.20
  4. Step 4: Simplify right side
    49,343.80x = 3,234,944,987.34
  5. Step 5: Solve for x
    x = 3,234,944,987.34/49,343.80
  6. Step 6: Final answer
    x = 65,559.30

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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.