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Finding the Fourth Proportional to 18,692,000.40, 28,041,791.40 and 10,608,848.40

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Solution

The fourth proportional to 18,692,000.40, 28,041,791.40 and 10,608,848.40 is: 15,915,424.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692,000.40 : 28,041,791.40 = 10,608,848.40 : x
  2. Step 2: Convert to fraction form
    18,692,000.40/28,041,791.40 = 10,608,848.40/x
  3. Step 3: Cross multiply
    18,692,000.40x = 28,041,791.40 × 10,608,848.40
  4. Step 4: Simplify right side
    18,692,000.40x = 297,491,113,827,023.75
  5. Step 5: Solve for x
    x = 297,491,113,827,023.75/18,692,000.40
  6. Step 6: Final answer
    x = 15,915,424.11

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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.