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Finding the Fourth Proportional to 10,613.58, 14,613.18 and 8,087.58

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Solution

The fourth proportional to 10,613.58, 14,613.18 and 8,087.58 is: 11,135.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.58 : 14,613.18 = 8,087.58 : x
  2. Step 2: Convert to fraction form
    10,613.58/14,613.18 = 8,087.58/x
  3. Step 3: Cross multiply
    10,613.58x = 14,613.18 × 8,087.58
  4. Step 4: Simplify right side
    10,613.58x = 118,185,262.30
  5. Step 5: Solve for x
    x = 118,185,262.30/10,613.58
  6. Step 6: Final answer
    x = 11,135.29

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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.