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Finding the Fourth Proportional to 22,235.58, 30,670.97 and 14,980.01

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Solution

The fourth proportional to 22,235.58, 30,670.97 and 14,980.01 is: 20,662.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,235.58 : 30,670.97 = 14,980.01 : x
  2. Step 2: Convert to fraction form
    22,235.58/30,670.97 = 14,980.01/x
  3. Step 3: Cross multiply
    22,235.58x = 30,670.97 × 14,980.01
  4. Step 4: Simplify right side
    22,235.58x = 459,451,209.05
  5. Step 5: Solve for x
    x = 459,451,209.05/22,235.58
  6. Step 6: Final answer
    x = 20,662.88

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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.