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Finding the Fourth Proportional to 11,707.58, 17,557.79 and 6,157.91

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Solution

The fourth proportional to 11,707.58, 17,557.79 and 6,157.91 is: 9,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,707.58 : 17,557.79 = 6,157.91 : x
  2. Step 2: Convert to fraction form
    11,707.58/17,557.79 = 6,157.91/x
  3. Step 3: Cross multiply
    11,707.58x = 17,557.79 × 6,157.91
  4. Step 4: Simplify right side
    11,707.58x = 108,119,172.04
  5. Step 5: Solve for x
    x = 108,119,172.04/11,707.58
  6. Step 6: Final answer
    x = 9,234.98

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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.