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Finding the Fourth Proportional to 14,145.10, 19,520.33 and 8,842.97

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Solution

The fourth proportional to 14,145.10, 19,520.33 and 8,842.97 is: 12,203.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.10 : 19,520.33 = 8,842.97 : x
  2. Step 2: Convert to fraction form
    14,145.10/19,520.33 = 8,842.97/x
  3. Step 3: Cross multiply
    14,145.10x = 19,520.33 × 8,842.97
  4. Step 4: Simplify right side
    14,145.10x = 172,617,697.17
  5. Step 5: Solve for x
    x = 172,617,697.17/14,145.10
  6. Step 6: Final answer
    x = 12,203.36

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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.