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Finding the Fourth Proportional to 11,638,963.80, 17,458,445.70 and 11,638,963.80

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Solution

The fourth proportional to 11,638,963.80, 17,458,445.70 and 11,638,963.80 is: 17,458,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,638,963.80 : 17,458,445.70 = 11,638,963.80 : x
  2. Step 2: Convert to fraction form
    11,638,963.80/17,458,445.70 = 11,638,963.80/x
  3. Step 3: Cross multiply
    11,638,963.80x = 17,458,445.70 × 11,638,963.80
  4. Step 4: Simplify right side
    11,638,963.80x = 203,198,217,506,565.66
  5. Step 5: Solve for x
    x = 203,198,217,506,565.66/11,638,963.80
  6. Step 6: Final answer
    x = 17,458,445.70

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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.