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Finding the Fourth Proportional to 14,666.85, 20,243.04 and 8,701.81

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Solution

The fourth proportional to 14,666.85, 20,243.04 and 8,701.81 is: 12,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,666.85 : 20,243.04 = 8,701.81 : x
  2. Step 2: Convert to fraction form
    14,666.85/20,243.04 = 8,701.81/x
  3. Step 3: Cross multiply
    14,666.85x = 20,243.04 × 8,701.81
  4. Step 4: Simplify right side
    14,666.85x = 176,150,986.69
  5. Step 5: Solve for x
    x = 176,150,986.69/14,666.85
  6. Step 6: Final answer
    x = 12,010.15

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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.