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Finding the Fourth Proportional to 11,326.70, 15,630.95 and 6,610.07

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Solution

The fourth proportional to 11,326.70, 15,630.95 and 6,610.07 is: 9,121.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.70 : 15,630.95 = 6,610.07 : x
  2. Step 2: Convert to fraction form
    11,326.70/15,630.95 = 6,610.07/x
  3. Step 3: Cross multiply
    11,326.70x = 15,630.95 × 6,610.07
  4. Step 4: Simplify right side
    11,326.70x = 103,321,673.67
  5. Step 5: Solve for x
    x = 103,321,673.67/11,326.70
  6. Step 6: Final answer
    x = 9,121.96

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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.