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Finding the Fourth Proportional to 8,452.80, 12,646.80 and 5,536.80

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Solution

The fourth proportional to 8,452.80, 12,646.80 and 5,536.80 is: 8,283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.80 : 12,646.80 = 5,536.80 : x
  2. Step 2: Convert to fraction form
    8,452.80/12,646.80 = 5,536.80/x
  3. Step 3: Cross multiply
    8,452.80x = 12,646.80 × 5,536.80
  4. Step 4: Simplify right side
    8,452.80x = 70,022,802.24
  5. Step 5: Solve for x
    x = 70,022,802.24/8,452.80
  6. Step 6: Final answer
    x = 8,283.98

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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.