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Finding the Fourth Proportional to 35,230.55, 48,620.15 and 20,898.88

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Solution

The fourth proportional to 35,230.55, 48,620.15 and 20,898.88 is: 28,841.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,230.55 : 48,620.15 = 20,898.88 : x
  2. Step 2: Convert to fraction form
    35,230.55/48,620.15 = 20,898.88/x
  3. Step 3: Cross multiply
    35,230.55x = 48,620.15 × 20,898.88
  4. Step 4: Simplify right side
    35,230.55x = 1,016,106,680.43
  5. Step 5: Solve for x
    x = 1,016,106,680.43/35,230.55
  6. Step 6: Final answer
    x = 28,841.64

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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.