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Finding the Fourth Proportional to 35,165.65, 52,773.90 and 13,821.55

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Solution

The fourth proportional to 35,165.65, 52,773.90 and 13,821.55 is: 20,742.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,165.65 : 52,773.90 = 13,821.55 : x
  2. Step 2: Convert to fraction form
    35,165.65/52,773.90 = 13,821.55/x
  3. Step 3: Cross multiply
    35,165.65x = 52,773.90 × 13,821.55
  4. Step 4: Simplify right side
    35,165.65x = 729,417,028.44
  5. Step 5: Solve for x
    x = 729,417,028.44/35,165.65
  6. Step 6: Final answer
    x = 20,742.32

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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.