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Finding the Fourth Proportional to 9,853.68, 13,592.79 and 6,662.79

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Solution

The fourth proportional to 9,853.68, 13,592.79 and 6,662.79 is: 9,191.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,853.68 : 13,592.79 = 6,662.79 : x
  2. Step 2: Convert to fraction form
    9,853.68/13,592.79 = 6,662.79/x
  3. Step 3: Cross multiply
    9,853.68x = 13,592.79 × 6,662.79
  4. Step 4: Simplify right side
    9,853.68x = 90,565,905.28
  5. Step 5: Solve for x
    x = 90,565,905.28/9,853.68
  6. Step 6: Final answer
    x = 9,191.07

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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.