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Finding the Fourth Proportional to 9,992.10, 14,976.48 and 7,518.97

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Solution

The fourth proportional to 9,992.10, 14,976.48 and 7,518.97 is: 11,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.10 : 14,976.48 = 7,518.97 : x
  2. Step 2: Convert to fraction form
    9,992.10/14,976.48 = 7,518.97/x
  3. Step 3: Cross multiply
    9,992.10x = 14,976.48 × 7,518.97
  4. Step 4: Simplify right side
    9,992.10x = 112,607,703.83
  5. Step 5: Solve for x
    x = 112,607,703.83/9,992.10
  6. Step 6: Final answer
    x = 11,269.67

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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.