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Finding the Fourth Proportional to 20,473.52, 30,709.03 and 12,044.69

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Solution

The fourth proportional to 20,473.52, 30,709.03 and 12,044.69 is: 18,066.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473.52 : 30,709.03 = 12,044.69 : x
  2. Step 2: Convert to fraction form
    20,473.52/30,709.03 = 12,044.69/x
  3. Step 3: Cross multiply
    20,473.52x = 30,709.03 × 12,044.69
  4. Step 4: Simplify right side
    20,473.52x = 369,880,746.55
  5. Step 5: Solve for x
    x = 369,880,746.55/20,473.52
  6. Step 6: Final answer
    x = 18,066.30

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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.