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Finding the Fourth Proportional to 39,983,967.79, 59,978,194.86 and 11,227,861.12

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Solution

The fourth proportional to 39,983,967.79, 59,978,194.86 and 11,227,861.12 is: 16,842,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,983,967.79 : 59,978,194.86 = 11,227,861.12 : x
  2. Step 2: Convert to fraction form
    39,983,967.79/59,978,194.86 = 11,227,861.12/x
  3. Step 3: Cross multiply
    39,983,967.79x = 59,978,194.86 × 11,227,861.12
  4. Step 4: Simplify right side
    39,983,967.79x = 673,426,842,116,377.75
  5. Step 5: Solve for x
    x = 673,426,842,116,377.75/39,983,967.79
  6. Step 6: Final answer
    x = 16,842,421.58

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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.