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Finding the Fourth Proportional to 8,832.48, 12,189.92 and 5,106.48

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Solution

The fourth proportional to 8,832.48, 12,189.92 and 5,106.48 is: 7,047.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,832.48 : 12,189.92 = 5,106.48 : x
  2. Step 2: Convert to fraction form
    8,832.48/12,189.92 = 5,106.48/x
  3. Step 3: Cross multiply
    8,832.48x = 12,189.92 × 5,106.48
  4. Step 4: Simplify right side
    8,832.48x = 62,247,582.68
  5. Step 5: Solve for x
    x = 62,247,582.68/8,832.48
  6. Step 6: Final answer
    x = 7,047.58

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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.