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Finding the Fourth Proportional to 7,024.80, 10,537.20 and 3,946.40

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Solution

The fourth proportional to 7,024.80, 10,537.20 and 3,946.40 is: 5,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,024.80 : 10,537.20 = 3,946.40 : x
  2. Step 2: Convert to fraction form
    7,024.80/10,537.20 = 3,946.40/x
  3. Step 3: Cross multiply
    7,024.80x = 10,537.20 × 3,946.40
  4. Step 4: Simplify right side
    7,024.80x = 41,584,006.08
  5. Step 5: Solve for x
    x = 41,584,006.08/7,024.80
  6. Step 6: Final answer
    x = 5,919.60

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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.