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Finding the Fourth Proportional to 13,842.56, 19,102.68 and 7,792.30

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Solution

The fourth proportional to 13,842.56, 19,102.68 and 7,792.30 is: 10,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.56 : 19,102.68 = 7,792.30 : x
  2. Step 2: Convert to fraction form
    13,842.56/19,102.68 = 7,792.30/x
  3. Step 3: Cross multiply
    13,842.56x = 19,102.68 × 7,792.30
  4. Step 4: Simplify right side
    13,842.56x = 148,853,813.36
  5. Step 5: Solve for x
    x = 148,853,813.36/13,842.56
  6. Step 6: Final answer
    x = 10,753.34

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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.