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Finding the Fourth Proportional to 18,806.77, 25,959.06 and 10,854.19

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Solution

The fourth proportional to 18,806.77, 25,959.06 and 10,854.19 is: 14,982.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.77 : 25,959.06 = 10,854.19 : x
  2. Step 2: Convert to fraction form
    18,806.77/25,959.06 = 10,854.19/x
  3. Step 3: Cross multiply
    18,806.77x = 25,959.06 × 10,854.19
  4. Step 4: Simplify right side
    18,806.77x = 281,764,569.46
  5. Step 5: Solve for x
    x = 281,764,569.46/18,806.77
  6. Step 6: Final answer
    x = 14,982.08

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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.