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Finding the Fourth Proportional to 14,294.70, 19,727.73 and 8,630.82

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Solution

The fourth proportional to 14,294.70, 19,727.73 and 8,630.82 is: 11,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,294.70 : 19,727.73 = 8,630.82 : x
  2. Step 2: Convert to fraction form
    14,294.70/19,727.73 = 8,630.82/x
  3. Step 3: Cross multiply
    14,294.70x = 19,727.73 × 8,630.82
  4. Step 4: Simplify right side
    14,294.70x = 170,266,486.64
  5. Step 5: Solve for x
    x = 170,266,486.64/14,294.70
  6. Step 6: Final answer
    x = 11,911.16

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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.