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Finding the Fourth Proportional to 12,497,435.55, 18,745,978.37 and 4,924,466.91

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Solution

The fourth proportional to 12,497,435.55, 18,745,978.37 and 4,924,466.91 is: 7,386,631.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497,435.55 : 18,745,978.37 = 4,924,466.91 : x
  2. Step 2: Convert to fraction form
    12,497,435.55/18,745,978.37 = 4,924,466.91/x
  3. Step 3: Cross multiply
    12,497,435.55x = 18,745,978.37 × 4,924,466.91
  4. Step 4: Simplify right side
    12,497,435.55x = 92,313,950,154,018.39
  5. Step 5: Solve for x
    x = 92,313,950,154,018.39/12,497,435.55
  6. Step 6: Final answer
    x = 7,386,631.42

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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.