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Finding the Fourth Proportional to 11,698.79, 17,555.30 and 6,156.10

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Solution

The fourth proportional to 11,698.79, 17,555.30 and 6,156.10 is: 9,237.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,698.79 : 17,555.30 = 6,156.10 : x
  2. Step 2: Convert to fraction form
    11,698.79/17,555.30 = 6,156.10/x
  3. Step 3: Cross multiply
    11,698.79x = 17,555.30 × 6,156.10
  4. Step 4: Simplify right side
    11,698.79x = 108,072,182.33
  5. Step 5: Solve for x
    x = 108,072,182.33/11,698.79
  6. Step 6: Final answer
    x = 9,237.89

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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.