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Finding the Fourth Proportional to 16,666.78, 24,995.07 and 8,765.00

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Solution

The fourth proportional to 16,666.78, 24,995.07 and 8,765.00 is: 13,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,666.78 : 24,995.07 = 8,765.00 : x
  2. Step 2: Convert to fraction form
    16,666.78/24,995.07 = 8,765.00/x
  3. Step 3: Cross multiply
    16,666.78x = 24,995.07 × 8,765.00
  4. Step 4: Simplify right side
    16,666.78x = 219,081,709.83
  5. Step 5: Solve for x
    x = 219,081,709.83/16,666.78
  6. Step 6: Final answer
    x = 13,144.82

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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.