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Finding the Fourth Proportional to 12,221.03, 16,865.03 and 6,632.03

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Solution

The fourth proportional to 12,221.03, 16,865.03 and 6,632.03 is: 9,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.03 : 16,865.03 = 6,632.03 : x
  2. Step 2: Convert to fraction form
    12,221.03/16,865.03 = 6,632.03/x
  3. Step 3: Cross multiply
    12,221.03x = 16,865.03 × 6,632.03
  4. Step 4: Simplify right side
    12,221.03x = 111,849,267.43
  5. Step 5: Solve for x
    x = 111,849,267.43/12,221.03
  6. Step 6: Final answer
    x = 9,152.20

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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.