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Finding the Fourth Proportional to 18,045.37, 24,902.56 and 9,868.97

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Solution

The fourth proportional to 18,045.37, 24,902.56 and 9,868.97 is: 13,619.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.37 : 24,902.56 = 9,868.97 : x
  2. Step 2: Convert to fraction form
    18,045.37/24,902.56 = 9,868.97/x
  3. Step 3: Cross multiply
    18,045.37x = 24,902.56 × 9,868.97
  4. Step 4: Simplify right side
    18,045.37x = 245,762,636.64
  5. Step 5: Solve for x
    x = 245,762,636.64/18,045.37
  6. Step 6: Final answer
    x = 13,619.16

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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.