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Finding the Fourth Proportional to 8,945.01, 13,419.81 and 5,250.51

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Solution

The fourth proportional to 8,945.01, 13,419.81 and 5,250.51 is: 7,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.01 : 13,419.81 = 5,250.51 : x
  2. Step 2: Convert to fraction form
    8,945.01/13,419.81 = 5,250.51/x
  3. Step 3: Cross multiply
    8,945.01x = 13,419.81 × 5,250.51
  4. Step 4: Simplify right side
    8,945.01x = 70,460,846.60
  5. Step 5: Solve for x
    x = 70,460,846.60/8,945.01
  6. Step 6: Final answer
    x = 7,877.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.