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Finding the Fourth Proportional to 18,436,482.90, 27,671,454.90 and 9,344,905.20

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Solution

The fourth proportional to 18,436,482.90, 27,671,454.90 and 9,344,905.20 is: 14,025,838.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436,482.90 : 27,671,454.90 = 9,344,905.20 : x
  2. Step 2: Convert to fraction form
    18,436,482.90/27,671,454.90 = 9,344,905.20/x
  3. Step 3: Cross multiply
    18,436,482.90x = 27,671,454.90 × 9,344,905.20
  4. Step 4: Simplify right side
    18,436,482.90x = 258,587,122,786,575.44
  5. Step 5: Solve for x
    x = 258,587,122,786,575.44/18,436,482.90
  6. Step 6: Final answer
    x = 14,025,838.02

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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.