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Finding the Fourth Proportional to 11,813.66, 17,627.94 and 10,572.54

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Solution

The fourth proportional to 11,813.66, 17,627.94 and 10,572.54 is: 15,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813.66 : 17,627.94 = 10,572.54 : x
  2. Step 2: Convert to fraction form
    11,813.66/17,627.94 = 10,572.54/x
  3. Step 3: Cross multiply
    11,813.66x = 17,627.94 × 10,572.54
  4. Step 4: Simplify right side
    11,813.66x = 186,372,047.90
  5. Step 5: Solve for x
    x = 186,372,047.90/11,813.66
  6. Step 6: Final answer
    x = 15,775.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.