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Finding the Fourth Proportional to 14,354.18, 19,810.18 and 7,982.96

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Solution

The fourth proportional to 14,354.18, 19,810.18 and 7,982.96 is: 11,017.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,354.18 : 19,810.18 = 7,982.96 : x
  2. Step 2: Convert to fraction form
    14,354.18/19,810.18 = 7,982.96/x
  3. Step 3: Cross multiply
    14,354.18x = 19,810.18 × 7,982.96
  4. Step 4: Simplify right side
    14,354.18x = 158,143,874.53
  5. Step 5: Solve for x
    x = 158,143,874.53/14,354.18
  6. Step 6: Final answer
    x = 11,017.27

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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.