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Finding the Fourth Proportional to 7,908.48, 11,842.32 and 7,674.96

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Solution

The fourth proportional to 7,908.48, 11,842.32 and 7,674.96 is: 11,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.48 : 11,842.32 = 7,674.96 : x
  2. Step 2: Convert to fraction form
    7,908.48/11,842.32 = 7,674.96/x
  3. Step 3: Cross multiply
    7,908.48x = 11,842.32 × 7,674.96
  4. Step 4: Simplify right side
    7,908.48x = 90,889,332.31
  5. Step 5: Solve for x
    x = 90,889,332.31/7,908.48
  6. Step 6: Final answer
    x = 11,492.64

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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.