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Finding the Fourth Proportional to 18,952.15, 28,490.49 and 17,582.04

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Solution

The fourth proportional to 18,952.15, 28,490.49 and 17,582.04 is: 26,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.15 : 28,490.49 = 17,582.04 : x
  2. Step 2: Convert to fraction form
    18,952.15/28,490.49 = 17,582.04/x
  3. Step 3: Cross multiply
    18,952.15x = 28,490.49 × 17,582.04
  4. Step 4: Simplify right side
    18,952.15x = 500,920,934.80
  5. Step 5: Solve for x
    x = 500,920,934.80/18,952.15
  6. Step 6: Final answer
    x = 26,430.82

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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.