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Finding the Fourth Proportional to 7,328.61, 10,993.50 and 2,651.40

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Solution

The fourth proportional to 7,328.61, 10,993.50 and 2,651.40 is: 3,977.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.61 : 10,993.50 = 2,651.40 : x
  2. Step 2: Convert to fraction form
    7,328.61/10,993.50 = 2,651.40/x
  3. Step 3: Cross multiply
    7,328.61x = 10,993.50 × 2,651.40
  4. Step 4: Simplify right side
    7,328.61x = 29,148,165.90
  5. Step 5: Solve for x
    x = 29,148,165.90/7,328.61
  6. Step 6: Final answer
    x = 3,977.31

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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.