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Finding the Fourth Proportional to 11,332.90, 17,000.10 and 3,012.80

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Solution

The fourth proportional to 11,332.90, 17,000.10 and 3,012.80 is: 4,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,332.90 : 17,000.10 = 3,012.80 : x
  2. Step 2: Convert to fraction form
    11,332.90/17,000.10 = 3,012.80/x
  3. Step 3: Cross multiply
    11,332.90x = 17,000.10 × 3,012.80
  4. Step 4: Simplify right side
    11,332.90x = 51,217,901.28
  5. Step 5: Solve for x
    x = 51,217,901.28/11,332.90
  6. Step 6: Final answer
    x = 4,519.40

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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.