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Finding the Fourth Proportional to 12,599.92, 18,899.76 and 3,365.92

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Solution

The fourth proportional to 12,599.92, 18,899.76 and 3,365.92 is: 5,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.92 : 18,899.76 = 3,365.92 : x
  2. Step 2: Convert to fraction form
    12,599.92/18,899.76 = 3,365.92/x
  3. Step 3: Cross multiply
    12,599.92x = 18,899.76 × 3,365.92
  4. Step 4: Simplify right side
    12,599.92x = 63,615,080.18
  5. Step 5: Solve for x
    x = 63,615,080.18/12,599.92
  6. Step 6: Final answer
    x = 5,048.85

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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.