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Finding the Fourth Proportional to 17,553,326.80, 26,329,990.20 and 11,191,781.20

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Solution

The fourth proportional to 17,553,326.80, 26,329,990.20 and 11,191,781.20 is: 16,787,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,553,326.80 : 26,329,990.20 = 11,191,781.20 : x
  2. Step 2: Convert to fraction form
    17,553,326.80/26,329,990.20 = 11,191,781.20/x
  3. Step 3: Cross multiply
    17,553,326.80x = 26,329,990.20 × 11,191,781.20
  4. Step 4: Simplify right side
    17,553,326.80x = 294,679,489,316,544.19
  5. Step 5: Solve for x
    x = 294,679,489,316,544.19/17,553,326.80
  6. Step 6: Final answer
    x = 16,787,671.80

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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.