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Finding the Fourth Proportional to 14,662.80, 22,010.40 and 11,390.40

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Solution

The fourth proportional to 14,662.80, 22,010.40 and 11,390.40 is: 17,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,662.80 : 22,010.40 = 11,390.40 : x
  2. Step 2: Convert to fraction form
    14,662.80/22,010.40 = 11,390.40/x
  3. Step 3: Cross multiply
    14,662.80x = 22,010.40 × 11,390.40
  4. Step 4: Simplify right side
    14,662.80x = 250,707,260.16
  5. Step 5: Solve for x
    x = 250,707,260.16/14,662.80
  6. Step 6: Final answer
    x = 17,098.18

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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.