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Finding the Fourth Proportional to 8,078.48, 11,148.48 and 4,541.68

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Solution

The fourth proportional to 8,078.48, 11,148.48 and 4,541.68 is: 6,267.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.48 : 11,148.48 = 4,541.68 : x
  2. Step 2: Convert to fraction form
    8,078.48/11,148.48 = 4,541.68/x
  3. Step 3: Cross multiply
    8,078.48x = 11,148.48 × 4,541.68
  4. Step 4: Simplify right side
    8,078.48x = 50,632,828.65
  5. Step 5: Solve for x
    x = 50,632,828.65/8,078.48
  6. Step 6: Final answer
    x = 6,267.62

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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.