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Finding the Fourth Proportional to 7,404.86, 10,212.09 and 4,885.22

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Solution

The fourth proportional to 7,404.86, 10,212.09 and 4,885.22 is: 6,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.86 : 10,212.09 = 4,885.22 : x
  2. Step 2: Convert to fraction form
    7,404.86/10,212.09 = 4,885.22/x
  3. Step 3: Cross multiply
    7,404.86x = 10,212.09 × 4,885.22
  4. Step 4: Simplify right side
    7,404.86x = 49,888,306.31
  5. Step 5: Solve for x
    x = 49,888,306.31/7,404.86
  6. Step 6: Final answer
    x = 6,737.24

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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.