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Finding the Fourth Proportional to 7,992.92, 11,030.88 and 4,455.64

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Solution

The fourth proportional to 7,992.92, 11,030.88 and 4,455.64 is: 6,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.92 : 11,030.88 = 4,455.64 : x
  2. Step 2: Convert to fraction form
    7,992.92/11,030.88 = 4,455.64/x
  3. Step 3: Cross multiply
    7,992.92x = 11,030.88 × 4,455.64
  4. Step 4: Simplify right side
    7,992.92x = 49,149,630.16
  5. Step 5: Solve for x
    x = 49,149,630.16/7,992.92
  6. Step 6: Final answer
    x = 6,149.15

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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.