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Finding the Fourth Proportional to 30,451.83, 45,691.10 and 14,452.92

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Solution

The fourth proportional to 30,451.83, 45,691.10 and 14,452.92 is: 21,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.83 : 45,691.10 = 14,452.92 : x
  2. Step 2: Convert to fraction form
    30,451.83/45,691.10 = 14,452.92/x
  3. Step 3: Cross multiply
    30,451.83x = 45,691.10 × 14,452.92
  4. Step 4: Simplify right side
    30,451.83x = 660,369,813.01
  5. Step 5: Solve for x
    x = 660,369,813.01/30,451.83
  6. Step 6: Final answer
    x = 21,685.72

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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.