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Finding the Fourth Proportional to 18,225.81, 25,150.20 and 10,671.14

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Solution

The fourth proportional to 18,225.81, 25,150.20 and 10,671.14 is: 14,725.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.81 : 25,150.20 = 10,671.14 : x
  2. Step 2: Convert to fraction form
    18,225.81/25,150.20 = 10,671.14/x
  3. Step 3: Cross multiply
    18,225.81x = 25,150.20 × 10,671.14
  4. Step 4: Simplify right side
    18,225.81x = 268,381,328.09
  5. Step 5: Solve for x
    x = 268,381,328.09/18,225.81
  6. Step 6: Final answer
    x = 14,725.34

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Half scale
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Double scale
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Similar ratio
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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.