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Finding the Fourth Proportional to 9,400.79, 14,101.90 and 3,160.82

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Solution

The fourth proportional to 9,400.79, 14,101.90 and 3,160.82 is: 4,741.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,400.79 : 14,101.90 = 3,160.82 : x
  2. Step 2: Convert to fraction form
    9,400.79/14,101.90 = 3,160.82/x
  3. Step 3: Cross multiply
    9,400.79x = 14,101.90 × 3,160.82
  4. Step 4: Simplify right side
    9,400.79x = 44,573,594.91
  5. Step 5: Solve for x
    x = 44,573,594.91/9,400.79
  6. Step 6: Final answer
    x = 4,741.47

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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.