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Finding the Fourth Proportional to 11,695.72, 17,543.58 and 3,487.72

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Solution

The fourth proportional to 11,695.72, 17,543.58 and 3,487.72 is: 5,231.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,695.72 : 17,543.58 = 3,487.72 : x
  2. Step 2: Convert to fraction form
    11,695.72/17,543.58 = 3,487.72/x
  3. Step 3: Cross multiply
    11,695.72x = 17,543.58 × 3,487.72
  4. Step 4: Simplify right side
    11,695.72x = 61,187,094.84
  5. Step 5: Solve for x
    x = 61,187,094.84/11,695.72
  6. Step 6: Final answer
    x = 5,231.58

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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.