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Finding the Fourth Proportional to 17,387,584.40, 26,056,493.40 and 12,802,854.80

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Solution

The fourth proportional to 17,387,584.40, 26,056,493.40 and 12,802,854.80 is: 19,185,960.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,387,584.40 : 26,056,493.40 = 12,802,854.80 : x
  2. Step 2: Convert to fraction form
    17,387,584.40/26,056,493.40 = 12,802,854.80/x
  3. Step 3: Cross multiply
    17,387,584.40x = 26,056,493.40 × 12,802,854.80
  4. Step 4: Simplify right side
    17,387,584.40x = 333,597,501,597,358.31
  5. Step 5: Solve for x
    x = 333,597,501,597,358.31/17,387,584.40
  6. Step 6: Final answer
    x = 19,185,960.16

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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.