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Finding the Fourth Proportional to 10,860.48, 16,290.96 and 9,228.48

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Solution

The fourth proportional to 10,860.48, 16,290.96 and 9,228.48 is: 13,842.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.48 : 16,290.96 = 9,228.48 : x
  2. Step 2: Convert to fraction form
    10,860.48/16,290.96 = 9,228.48/x
  3. Step 3: Cross multiply
    10,860.48x = 16,290.96 × 9,228.48
  4. Step 4: Simplify right side
    10,860.48x = 150,340,798.54
  5. Step 5: Solve for x
    x = 150,340,798.54/10,860.48
  6. Step 6: Final answer
    x = 13,842.92

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1.5x scale

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.