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Finding the Fourth Proportional to 18,359,898.80, 27,539,848.20 and 8,793,960.80

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Solution

The fourth proportional to 18,359,898.80, 27,539,848.20 and 8,793,960.80 is: 13,190,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359,898.80 : 27,539,848.20 = 8,793,960.80 : x
  2. Step 2: Convert to fraction form
    18,359,898.80/27,539,848.20 = 8,793,960.80/x
  3. Step 3: Cross multiply
    18,359,898.80x = 27,539,848.20 × 8,793,960.80
  4. Step 4: Simplify right side
    18,359,898.80x = 242,184,345,508,750.56
  5. Step 5: Solve for x
    x = 242,184,345,508,750.56/18,359,898.80
  6. Step 6: Final answer
    x = 13,190,941.20

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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.