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Finding the Fourth Proportional to 11,536.80, 15,922.04 and 6,500.60

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Solution

The fourth proportional to 11,536.80, 15,922.04 and 6,500.60 is: 8,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,536.80 : 15,922.04 = 6,500.60 : x
  2. Step 2: Convert to fraction form
    11,536.80/15,922.04 = 6,500.60/x
  3. Step 3: Cross multiply
    11,536.80x = 15,922.04 × 6,500.60
  4. Step 4: Simplify right side
    11,536.80x = 103,502,813.22
  5. Step 5: Solve for x
    x = 103,502,813.22/11,536.80
  6. Step 6: Final answer
    x = 8,971.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.