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Finding the Fourth Proportional to 7,505.80, 11,265.10 and 3,352.20

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Solution

The fourth proportional to 7,505.80, 11,265.10 and 3,352.20 is: 5,031.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,505.80 : 11,265.10 = 3,352.20 : x
  2. Step 2: Convert to fraction form
    7,505.80/11,265.10 = 3,352.20/x
  3. Step 3: Cross multiply
    7,505.80x = 11,265.10 × 3,352.20
  4. Step 4: Simplify right side
    7,505.80x = 37,762,868.22
  5. Step 5: Solve for x
    x = 37,762,868.22/7,505.80
  6. Step 6: Final answer
    x = 5,031.16

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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.