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Finding the Fourth Proportional to 18,349.81, 25,322.25 and 10,392.79

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Solution

The fourth proportional to 18,349.81, 25,322.25 and 10,392.79 is: 14,341.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.81 : 25,322.25 = 10,392.79 : x
  2. Step 2: Convert to fraction form
    18,349.81/25,322.25 = 10,392.79/x
  3. Step 3: Cross multiply
    18,349.81x = 25,322.25 × 10,392.79
  4. Step 4: Simplify right side
    18,349.81x = 263,168,826.58
  5. Step 5: Solve for x
    x = 263,168,826.58/18,349.81
  6. Step 6: Final answer
    x = 14,341.77

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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.