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Finding the Fourth Proportional to 17,869.74, 24,661.05 and 9,911.49

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Solution

The fourth proportional to 17,869.74, 24,661.05 and 9,911.49 is: 13,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,869.74 : 24,661.05 = 9,911.49 : x
  2. Step 2: Convert to fraction form
    17,869.74/24,661.05 = 9,911.49/x
  3. Step 3: Cross multiply
    17,869.74x = 24,661.05 × 9,911.49
  4. Step 4: Simplify right side
    17,869.74x = 244,427,750.46
  5. Step 5: Solve for x
    x = 244,427,750.46/17,869.74
  6. Step 6: Final answer
    x = 13,678.30

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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.