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Finding the Fourth Proportional to 14,933.30, 20,606.81 and 8,559.81

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Solution

The fourth proportional to 14,933.30, 20,606.81 and 8,559.81 is: 11,811.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,933.30 : 20,606.81 = 8,559.81 : x
  2. Step 2: Convert to fraction form
    14,933.30/20,606.81 = 8,559.81/x
  3. Step 3: Cross multiply
    14,933.30x = 20,606.81 × 8,559.81
  4. Step 4: Simplify right side
    14,933.30x = 176,390,335.51
  5. Step 5: Solve for x
    x = 176,390,335.51/14,933.30
  6. Step 6: Final answer
    x = 11,811.88

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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.