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Finding the Fourth Proportional to 14,710.74, 20,300.78 and 7,996.34

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Solution

The fourth proportional to 14,710.74, 20,300.78 and 7,996.34 is: 11,034.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,710.74 : 20,300.78 = 7,996.34 : x
  2. Step 2: Convert to fraction form
    14,710.74/20,300.78 = 7,996.34/x
  3. Step 3: Cross multiply
    14,710.74x = 20,300.78 × 7,996.34
  4. Step 4: Simplify right side
    14,710.74x = 162,331,939.15
  5. Step 5: Solve for x
    x = 162,331,939.15/14,710.74
  6. Step 6: Final answer
    x = 11,034.93

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Double scale
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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.