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Finding the Fourth Proportional to 14,809,977.96, 20,437,498.98 and 8,371,449.96

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Solution

The fourth proportional to 14,809,977.96, 20,437,498.98 and 8,371,449.96 is: 11,552,447.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,809,977.96 : 20,437,498.98 = 8,371,449.96 : x
  2. Step 2: Convert to fraction form
    14,809,977.96/20,437,498.98 = 8,371,449.96/x
  3. Step 3: Cross multiply
    14,809,977.96x = 20,437,498.98 × 8,371,449.96
  4. Step 4: Simplify right side
    14,809,977.96x = 171,091,500,018,621.03
  5. Step 5: Solve for x
    x = 171,091,500,018,621.03/14,809,977.96
  6. Step 6: Final answer
    x = 11,552,447.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.