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Finding the Fourth Proportional to 12,152.56, 16,769.28 and 6,847.12

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Solution

The fourth proportional to 12,152.56, 16,769.28 and 6,847.12 is: 9,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.56 : 16,769.28 = 6,847.12 : x
  2. Step 2: Convert to fraction form
    12,152.56/16,769.28 = 6,847.12/x
  3. Step 3: Cross multiply
    12,152.56x = 16,769.28 × 6,847.12
  4. Step 4: Simplify right side
    12,152.56x = 114,821,272.47
  5. Step 5: Solve for x
    x = 114,821,272.47/12,152.56
  6. Step 6: Final answer
    x = 9,448.32

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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.