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Finding the Fourth Proportional to 7,296.90, 10,945.35 and 2,103.30

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Solution

The fourth proportional to 7,296.90, 10,945.35 and 2,103.30 is: 3,154.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,296.90 : 10,945.35 = 2,103.30 : x
  2. Step 2: Convert to fraction form
    7,296.90/10,945.35 = 2,103.30/x
  3. Step 3: Cross multiply
    7,296.90x = 10,945.35 × 2,103.30
  4. Step 4: Simplify right side
    7,296.90x = 23,021,354.66
  5. Step 5: Solve for x
    x = 23,021,354.66/7,296.90
  6. Step 6: Final answer
    x = 3,154.95

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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.