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Finding the Fourth Proportional to 7,271.02, 10,899.60 and 2,337.20

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Solution

The fourth proportional to 7,271.02, 10,899.60 and 2,337.20 is: 3,503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.02 : 10,899.60 = 2,337.20 : x
  2. Step 2: Convert to fraction form
    7,271.02/10,899.60 = 2,337.20/x
  3. Step 3: Cross multiply
    7,271.02x = 10,899.60 × 2,337.20
  4. Step 4: Simplify right side
    7,271.02x = 25,474,545.12
  5. Step 5: Solve for x
    x = 25,474,545.12/7,271.02
  6. Step 6: Final answer
    x = 3,503.57

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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.