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Finding the Fourth Proportional to 30,671,860.80, 45,968,716.80 and 16,301,812.80

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Solution

The fourth proportional to 30,671,860.80, 45,968,716.80 and 16,301,812.80 is: 24,431,951.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,671,860.80 : 45,968,716.80 = 16,301,812.80 : x
  2. Step 2: Convert to fraction form
    30,671,860.80/45,968,716.80 = 16,301,812.80/x
  3. Step 3: Cross multiply
    30,671,860.80x = 45,968,716.80 × 16,301,812.80
  4. Step 4: Simplify right side
    30,671,860.80x = 749,373,415,929,815
  5. Step 5: Solve for x
    x = 749,373,415,929,815/30,671,860.80
  6. Step 6: Final answer
    x = 24,431,951.51

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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.