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Finding the Fourth Proportional to 15,958.81, 22,022.76 and 8,885.08

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Solution

The fourth proportional to 15,958.81, 22,022.76 and 8,885.08 is: 12,261.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,958.81 : 22,022.76 = 8,885.08 : x
  2. Step 2: Convert to fraction form
    15,958.81/22,022.76 = 8,885.08/x
  3. Step 3: Cross multiply
    15,958.81x = 22,022.76 × 8,885.08
  4. Step 4: Simplify right side
    15,958.81x = 195,673,984.42
  5. Step 5: Solve for x
    x = 195,673,984.42/15,958.81
  6. Step 6: Final answer
    x = 12,261.19

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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.