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Finding the Fourth Proportional to 8,489,349.30, 11,713,485.65 and 5,050,918.74

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Solution

The fourth proportional to 8,489,349.30, 11,713,485.65 and 5,050,918.74 is: 6,969,187.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489,349.30 : 11,713,485.65 = 5,050,918.74 : x
  2. Step 2: Convert to fraction form
    8,489,349.30/11,713,485.65 = 5,050,918.74/x
  3. Step 3: Cross multiply
    8,489,349.30x = 11,713,485.65 × 5,050,918.74
  4. Step 4: Simplify right side
    8,489,349.30x = 59,163,864,180,306.09
  5. Step 5: Solve for x
    x = 59,163,864,180,306.09/8,489,349.30
  6. Step 6: Final answer
    x = 6,969,187.16

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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.