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Finding the Fourth Proportional to 11,653.79, 17,456.03 and 9,423.05

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Solution

The fourth proportional to 11,653.79, 17,456.03 and 9,423.05 is: 14,114.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,653.79 : 17,456.03 = 9,423.05 : x
  2. Step 2: Convert to fraction form
    11,653.79/17,456.03 = 9,423.05/x
  3. Step 3: Cross multiply
    11,653.79x = 17,456.03 × 9,423.05
  4. Step 4: Simplify right side
    11,653.79x = 164,488,909.10
  5. Step 5: Solve for x
    x = 164,488,909.10/11,653.79
  6. Step 6: Final answer
    x = 14,114.63

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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.