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Finding the Fourth Proportional to 10,661,583.06, 15,992,421.12 and 3,375,078.48

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Solution

The fourth proportional to 10,661,583.06, 15,992,421.12 and 3,375,078.48 is: 5,062,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661,583.06 : 15,992,421.12 = 3,375,078.48 : x
  2. Step 2: Convert to fraction form
    10,661,583.06/15,992,421.12 = 3,375,078.48/x
  3. Step 3: Cross multiply
    10,661,583.06x = 15,992,421.12 × 3,375,078.48
  4. Step 4: Simplify right side
    10,661,583.06x = 53,975,676,365,209.49
  5. Step 5: Solve for x
    x = 53,975,676,365,209.49/10,661,583.06
  6. Step 6: Final answer
    x = 5,062,632.45

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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.