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Finding the Fourth Proportional to 73,041.72, 100,797.50 and 39,507.64

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Solution

The fourth proportional to 73,041.72, 100,797.50 and 39,507.64 is: 54,520.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,041.72 : 100,797.50 = 39,507.64 : x
  2. Step 2: Convert to fraction form
    73,041.72/100,797.50 = 39,507.64/x
  3. Step 3: Cross multiply
    73,041.72x = 100,797.50 × 39,507.64
  4. Step 4: Simplify right side
    73,041.72x = 3,982,271,342.90
  5. Step 5: Solve for x
    x = 3,982,271,342.90/73,041.72
  6. Step 6: Final answer
    x = 54,520.50

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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.