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Finding the Fourth Proportional to 14,815,004.22, 20,447,903.64 and 9,015,654.48

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Solution

The fourth proportional to 14,815,004.22, 20,447,903.64 and 9,015,654.48 is: 12,443,549.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815,004.22 : 20,447,903.64 = 9,015,654.48 : x
  2. Step 2: Convert to fraction form
    14,815,004.22/20,447,903.64 = 9,015,654.48/x
  3. Step 3: Cross multiply
    14,815,004.22x = 20,447,903.64 × 9,015,654.48
  4. Step 4: Simplify right side
    14,815,004.22x = 184,351,234,058,574.31
  5. Step 5: Solve for x
    x = 184,351,234,058,574.31/14,815,004.22
  6. Step 6: Final answer
    x = 12,443,549.21

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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.