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Finding the Fourth Proportional to 14,951.94, 20,632.69 and 8,980.06

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Solution

The fourth proportional to 14,951.94, 20,632.69 and 8,980.06 is: 12,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,951.94 : 20,632.69 = 8,980.06 : x
  2. Step 2: Convert to fraction form
    14,951.94/20,632.69 = 8,980.06/x
  3. Step 3: Cross multiply
    14,951.94x = 20,632.69 × 8,980.06
  4. Step 4: Simplify right side
    14,951.94x = 185,282,794.16
  5. Step 5: Solve for x
    x = 185,282,794.16/14,951.94
  6. Step 6: Final answer
    x = 12,391.89

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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.