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Finding the Fourth Proportional to 14,630.90, 21,955.80 and 8,061.80

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Solution

The fourth proportional to 14,630.90, 21,955.80 and 8,061.80 is: 12,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,630.90 : 21,955.80 = 8,061.80 : x
  2. Step 2: Convert to fraction form
    14,630.90/21,955.80 = 8,061.80/x
  3. Step 3: Cross multiply
    14,630.90x = 21,955.80 × 8,061.80
  4. Step 4: Simplify right side
    14,630.90x = 177,003,268.44
  5. Step 5: Solve for x
    x = 177,003,268.44/14,630.90
  6. Step 6: Final answer
    x = 12,097.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.