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Finding the Fourth Proportional to 13,288,733.80, 18,654,615.80 and 13,288,733.80

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Solution

The fourth proportional to 13,288,733.80, 18,654,615.80 and 13,288,733.80 is: 18,654,615.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288,733.80 : 18,654,615.80 = 13,288,733.80 : x
  2. Step 2: Convert to fraction form
    13,288,733.80/18,654,615.80 = 13,288,733.80/x
  3. Step 3: Cross multiply
    13,288,733.80x = 18,654,615.80 × 13,288,733.80
  4. Step 4: Simplify right side
    13,288,733.80x = 247,896,223,507,474.06
  5. Step 5: Solve for x
    x = 247,896,223,507,474.06/13,288,733.80
  6. Step 6: Final answer
    x = 18,654,615.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.