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Finding the Fourth Proportional to 19,362.70, 26,718.96 and 10,863.64

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Solution

The fourth proportional to 19,362.70, 26,718.96 and 10,863.64 is: 14,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,362.70 : 26,718.96 = 10,863.64 : x
  2. Step 2: Convert to fraction form
    19,362.70/26,718.96 = 10,863.64/x
  3. Step 3: Cross multiply
    19,362.70x = 26,718.96 × 10,863.64
  4. Step 4: Simplify right side
    19,362.70x = 290,265,162.61
  5. Step 5: Solve for x
    x = 290,265,162.61/19,362.70
  6. Step 6: Final answer
    x = 14,990.94

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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.