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Finding the Fourth Proportional to 11,703.66, 16,151.07 and 6,398.47

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Solution

The fourth proportional to 11,703.66, 16,151.07 and 6,398.47 is: 8,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,703.66 : 16,151.07 = 6,398.47 : x
  2. Step 2: Convert to fraction form
    11,703.66/16,151.07 = 6,398.47/x
  3. Step 3: Cross multiply
    11,703.66x = 16,151.07 × 6,398.47
  4. Step 4: Simplify right side
    11,703.66x = 103,342,136.86
  5. Step 5: Solve for x
    x = 103,342,136.86/11,703.66
  6. Step 6: Final answer
    x = 8,829.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.