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Finding the Fourth Proportional to 14,950.50, 20,631.71 and 8,666.52

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Solution

The fourth proportional to 14,950.50, 20,631.71 and 8,666.52 is: 11,959.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,950.50 : 20,631.71 = 8,666.52 : x
  2. Step 2: Convert to fraction form
    14,950.50/20,631.71 = 8,666.52/x
  3. Step 3: Cross multiply
    14,950.50x = 20,631.71 × 8,666.52
  4. Step 4: Simplify right side
    14,950.50x = 178,805,084.02
  5. Step 5: Solve for x
    x = 178,805,084.02/14,950.50
  6. Step 6: Final answer
    x = 11,959.81

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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.