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Finding the Fourth Proportional to 13,315.92, 19,956.48 and 9,630.48

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Solution

The fourth proportional to 13,315.92, 19,956.48 and 9,630.48 is: 14,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.92 : 19,956.48 = 9,630.48 : x
  2. Step 2: Convert to fraction form
    13,315.92/19,956.48 = 9,630.48/x
  3. Step 3: Cross multiply
    13,315.92x = 19,956.48 × 9,630.48
  4. Step 4: Simplify right side
    13,315.92x = 192,190,481.51
  5. Step 5: Solve for x
    x = 192,190,481.51/13,315.92
  6. Step 6: Final answer
    x = 14,433.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.