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Finding the Fourth Proportional to 12,993.92, 17,908.80 and 10,350.08

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Solution

The fourth proportional to 12,993.92, 17,908.80 and 10,350.08 is: 14,264.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993.92 : 17,908.80 = 10,350.08 : x
  2. Step 2: Convert to fraction form
    12,993.92/17,908.80 = 10,350.08/x
  3. Step 3: Cross multiply
    12,993.92x = 17,908.80 × 10,350.08
  4. Step 4: Simplify right side
    12,993.92x = 185,357,512.70
  5. Step 5: Solve for x
    x = 185,357,512.70/12,993.92
  6. Step 6: Final answer
    x = 14,264.94

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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.