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Finding the Fourth Proportional to 7,373.20, 11,059.80 and 5,040.40

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Solution

The fourth proportional to 7,373.20, 11,059.80 and 5,040.40 is: 7,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,373.20 : 11,059.80 = 5,040.40 : x
  2. Step 2: Convert to fraction form
    7,373.20/11,059.80 = 5,040.40/x
  3. Step 3: Cross multiply
    7,373.20x = 11,059.80 × 5,040.40
  4. Step 4: Simplify right side
    7,373.20x = 55,745,815.92
  5. Step 5: Solve for x
    x = 55,745,815.92/7,373.20
  6. Step 6: Final answer
    x = 7,560.60

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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.