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Finding the Fourth Proportional to 11,054.80, 16,582.20 and 8,867.80

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Solution

The fourth proportional to 11,054.80, 16,582.20 and 8,867.80 is: 13,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,054.80 : 16,582.20 = 8,867.80 : x
  2. Step 2: Convert to fraction form
    11,054.80/16,582.20 = 8,867.80/x
  3. Step 3: Cross multiply
    11,054.80x = 16,582.20 × 8,867.80
  4. Step 4: Simplify right side
    11,054.80x = 147,047,633.16
  5. Step 5: Solve for x
    x = 147,047,633.16/11,054.80
  6. Step 6: Final answer
    x = 13,301.70

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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.