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Finding the Fourth Proportional to 40,651.20, 60,987.80 and 16,950.90

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Solution

The fourth proportional to 40,651.20, 60,987.80 and 16,950.90 is: 25,430.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,651.20 : 60,987.80 = 16,950.90 : x
  2. Step 2: Convert to fraction form
    40,651.20/60,987.80 = 16,950.90/x
  3. Step 3: Cross multiply
    40,651.20x = 60,987.80 × 16,950.90
  4. Step 4: Simplify right side
    40,651.20x = 1,033,798,099.02
  5. Step 5: Solve for x
    x = 1,033,798,099.02/40,651.20
  6. Step 6: Final answer
    x = 25,430.94

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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.