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Finding the Fourth Proportional to 18,392.19, 25,383.95 and 10,836.10

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Solution

The fourth proportional to 18,392.19, 25,383.95 and 10,836.10 is: 14,955.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.19 : 25,383.95 = 10,836.10 : x
  2. Step 2: Convert to fraction form
    18,392.19/25,383.95 = 10,836.10/x
  3. Step 3: Cross multiply
    18,392.19x = 25,383.95 × 10,836.10
  4. Step 4: Simplify right side
    18,392.19x = 275,063,111.15
  5. Step 5: Solve for x
    x = 275,063,111.15/18,392.19
  6. Step 6: Final answer
    x = 14,955.43

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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.