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Finding the Fourth Proportional to 14,246.70, 21,370.05 and 10,966.20

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Solution

The fourth proportional to 14,246.70, 21,370.05 and 10,966.20 is: 16,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,246.70 : 21,370.05 = 10,966.20 : x
  2. Step 2: Convert to fraction form
    14,246.70/21,370.05 = 10,966.20/x
  3. Step 3: Cross multiply
    14,246.70x = 21,370.05 × 10,966.20
  4. Step 4: Simplify right side
    14,246.70x = 234,348,242.31
  5. Step 5: Solve for x
    x = 234,348,242.31/14,246.70
  6. Step 6: Final answer
    x = 16,449.30

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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.