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Finding the Fourth Proportional to 8,673.72, 11,966.94 and 5,313.03

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Solution

The fourth proportional to 8,673.72, 11,966.94 and 5,313.03 is: 7,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.72 : 11,966.94 = 5,313.03 : x
  2. Step 2: Convert to fraction form
    8,673.72/11,966.94 = 5,313.03/x
  3. Step 3: Cross multiply
    8,673.72x = 11,966.94 × 5,313.03
  4. Step 4: Simplify right side
    8,673.72x = 63,580,711.23
  5. Step 5: Solve for x
    x = 63,580,711.23/8,673.72
  6. Step 6: Final answer
    x = 7,330.27

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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.