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Finding the Fourth Proportional to 18,349.25, 25,323.59 and 10,391.99

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Solution

The fourth proportional to 18,349.25, 25,323.59 and 10,391.99 is: 14,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.25 : 25,323.59 = 10,391.99 : x
  2. Step 2: Convert to fraction form
    18,349.25/25,323.59 = 10,391.99/x
  3. Step 3: Cross multiply
    18,349.25x = 25,323.59 × 10,391.99
  4. Step 4: Simplify right side
    18,349.25x = 263,162,393.41
  5. Step 5: Solve for x
    x = 263,162,393.41/18,349.25
  6. Step 6: Final answer
    x = 14,341.86

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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.