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Finding the Fourth Proportional to 14,459.90, 19,946.96 and 8,796.38

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Solution

The fourth proportional to 14,459.90, 19,946.96 and 8,796.38 is: 12,134.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,459.90 : 19,946.96 = 8,796.38 : x
  2. Step 2: Convert to fraction form
    14,459.90/19,946.96 = 8,796.38/x
  3. Step 3: Cross multiply
    14,459.90x = 19,946.96 × 8,796.38
  4. Step 4: Simplify right side
    14,459.90x = 175,460,896.29
  5. Step 5: Solve for x
    x = 175,460,896.29/14,459.90
  6. Step 6: Final answer
    x = 12,134.31

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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.