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Finding the Fourth Proportional to 15,911.67, 23,851.94 and 8,895.09

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Solution

The fourth proportional to 15,911.67, 23,851.94 and 8,895.09 is: 13,333.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.67 : 23,851.94 = 8,895.09 : x
  2. Step 2: Convert to fraction form
    15,911.67/23,851.94 = 8,895.09/x
  3. Step 3: Cross multiply
    15,911.67x = 23,851.94 × 8,895.09
  4. Step 4: Simplify right side
    15,911.67x = 212,165,108.50
  5. Step 5: Solve for x
    x = 212,165,108.50/15,911.67
  6. Step 6: Final answer
    x = 13,333.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.