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Finding the Fourth Proportional to 8,605,613.02, 12,909,821.49 and 2,540,957.84

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Solution

The fourth proportional to 8,605,613.02, 12,909,821.49 and 2,540,957.84 is: 3,811,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605,613.02 : 12,909,821.49 = 2,540,957.84 : x
  2. Step 2: Convert to fraction form
    8,605,613.02/12,909,821.49 = 2,540,957.84/x
  3. Step 3: Cross multiply
    8,605,613.02x = 12,909,821.49 × 2,540,957.84
  4. Step 4: Simplify right side
    8,605,613.02x = 32,803,312,128,015.98
  5. Step 5: Solve for x
    x = 32,803,312,128,015.98/8,605,613.02
  6. Step 6: Final answer
    x = 3,811,850.71

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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.