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Finding the Fourth Proportional to 14,488,978.40, 21,733,467.60 and 3,851,410.40

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Solution

The fourth proportional to 14,488,978.40, 21,733,467.60 and 3,851,410.40 is: 5,777,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,488,978.40 : 21,733,467.60 = 3,851,410.40 : x
  2. Step 2: Convert to fraction form
    14,488,978.40/21,733,467.60 = 3,851,410.40/x
  3. Step 3: Cross multiply
    14,488,978.40x = 21,733,467.60 × 3,851,410.40
  4. Step 4: Simplify right side
    14,488,978.40x = 83,704,503,142,703.05
  5. Step 5: Solve for x
    x = 83,704,503,142,703.05/14,488,978.40
  6. Step 6: Final answer
    x = 5,777,115.60

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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.