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Finding the Fourth Proportional to 73,851.80, 110,777.70 and 38,422.40

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Solution

The fourth proportional to 73,851.80, 110,777.70 and 38,422.40 is: 57,633.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,851.80 : 110,777.70 = 38,422.40 : x
  2. Step 2: Convert to fraction form
    73,851.80/110,777.70 = 38,422.40/x
  3. Step 3: Cross multiply
    73,851.80x = 110,777.70 × 38,422.40
  4. Step 4: Simplify right side
    73,851.80x = 4,256,345,100.48
  5. Step 5: Solve for x
    x = 4,256,345,100.48/73,851.80
  6. Step 6: Final answer
    x = 57,633.60

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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.