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Finding the Fourth Proportional to 8,992.36, 13,470.30 and 6,659.32

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Solution

The fourth proportional to 8,992.36, 13,470.30 and 6,659.32 is: 9,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.36 : 13,470.30 = 6,659.32 : x
  2. Step 2: Convert to fraction form
    8,992.36/13,470.30 = 6,659.32/x
  3. Step 3: Cross multiply
    8,992.36x = 13,470.30 × 6,659.32
  4. Step 4: Simplify right side
    8,992.36x = 89,703,038.20
  5. Step 5: Solve for x
    x = 89,703,038.20/8,992.36
  6. Step 6: Final answer
    x = 9,975.47

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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.