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Finding the Fourth Proportional to 14,658,327.64, 21,987,491.48 and 7,939,863.64

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Solution

The fourth proportional to 14,658,327.64, 21,987,491.48 and 7,939,863.64 is: 11,909,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658,327.64 : 21,987,491.48 = 7,939,863.64 : x
  2. Step 2: Convert to fraction form
    14,658,327.64/21,987,491.48 = 7,939,863.64/x
  3. Step 3: Cross multiply
    14,658,327.64x = 21,987,491.48 × 7,939,863.64
  4. Step 4: Simplify right side
    14,658,327.64x = 174,577,684,136,861.78
  5. Step 5: Solve for x
    x = 174,577,684,136,861.78/14,658,327.64
  6. Step 6: Final answer
    x = 11,909,795.47

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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.