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Finding the Fourth Proportional to 15,104.31, 20,846.62 and 11,295.06

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Solution

The fourth proportional to 15,104.31, 20,846.62 and 11,295.06 is: 15,589.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,104.31 : 20,846.62 = 11,295.06 : x
  2. Step 2: Convert to fraction form
    15,104.31/20,846.62 = 11,295.06/x
  3. Step 3: Cross multiply
    15,104.31x = 20,846.62 × 11,295.06
  4. Step 4: Simplify right side
    15,104.31x = 235,463,823.70
  5. Step 5: Solve for x
    x = 235,463,823.70/15,104.31
  6. Step 6: Final answer
    x = 15,589.18

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Half scale
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Double scale
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Similar ratio
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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.