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Finding the Fourth Proportional to 13,207,512.90, 18,452,726.70 and 13,207,512.90

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Solution

The fourth proportional to 13,207,512.90, 18,452,726.70 and 13,207,512.90 is: 18,452,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,512.90 : 18,452,726.70 = 13,207,512.90 : x
  2. Step 2: Convert to fraction form
    13,207,512.90/18,452,726.70 = 13,207,512.90/x
  3. Step 3: Cross multiply
    13,207,512.90x = 18,452,726.70 × 13,207,512.90
  4. Step 4: Simplify right side
    13,207,512.90x = 243,714,625,930,424.44
  5. Step 5: Solve for x
    x = 243,714,625,930,424.44/13,207,512.90
  6. Step 6: Final answer
    x = 18,452,726.70

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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.