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Finding the Fourth Proportional to 18,503,609.58, 25,537,653.14 and 10,661,619.69

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Solution

The fourth proportional to 18,503,609.58, 25,537,653.14 and 10,661,619.69 is: 14,714,574.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503,609.58 : 25,537,653.14 = 10,661,619.69 : x
  2. Step 2: Convert to fraction form
    18,503,609.58/25,537,653.14 = 10,661,619.69/x
  3. Step 3: Cross multiply
    18,503,609.58x = 25,537,653.14 × 10,661,619.69
  4. Step 4: Simplify right side
    18,503,609.58x = 272,272,745,500,506.22
  5. Step 5: Solve for x
    x = 272,272,745,500,506.22/18,503,609.58
  6. Step 6: Final answer
    x = 14,714,574.71

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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.