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Finding the Fourth Proportional to 9,992.15, 14,985.11 and 3,416.79

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Solution

The fourth proportional to 9,992.15, 14,985.11 and 3,416.79 is: 5,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.15 : 14,985.11 = 3,416.79 : x
  2. Step 2: Convert to fraction form
    9,992.15/14,985.11 = 3,416.79/x
  3. Step 3: Cross multiply
    9,992.15x = 14,985.11 × 3,416.79
  4. Step 4: Simplify right side
    9,992.15x = 51,200,956.91
  5. Step 5: Solve for x
    x = 51,200,956.91/9,992.15
  6. Step 6: Final answer
    x = 5,124.12

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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.