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Finding the Fourth Proportional to 15,010.92, 20,713.62 and 8,295.46

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Solution

The fourth proportional to 15,010.92, 20,713.62 and 8,295.46 is: 11,446.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.92 : 20,713.62 = 8,295.46 : x
  2. Step 2: Convert to fraction form
    15,010.92/20,713.62 = 8,295.46/x
  3. Step 3: Cross multiply
    15,010.92x = 20,713.62 × 8,295.46
  4. Step 4: Simplify right side
    15,010.92x = 171,828,902.60
  5. Step 5: Solve for x
    x = 171,828,902.60/15,010.92
  6. Step 6: Final answer
    x = 11,446.93

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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.