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Finding the Fourth Proportional to 8,795.36, 12,138.72 and 5,069.36

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Solution

The fourth proportional to 8,795.36, 12,138.72 and 5,069.36 is: 6,996.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795.36 : 12,138.72 = 5,069.36 : x
  2. Step 2: Convert to fraction form
    8,795.36/12,138.72 = 5,069.36/x
  3. Step 3: Cross multiply
    8,795.36x = 12,138.72 × 5,069.36
  4. Step 4: Simplify right side
    8,795.36x = 61,535,541.62
  5. Step 5: Solve for x
    x = 61,535,541.62/8,795.36
  6. Step 6: Final answer
    x = 6,996.36

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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.