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Finding the Fourth Proportional to 15,651,629.20, 23,477,443.80 and 13,486,790.80

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Solution

The fourth proportional to 15,651,629.20, 23,477,443.80 and 13,486,790.80 is: 20,230,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651,629.20 : 23,477,443.80 = 13,486,790.80 : x
  2. Step 2: Convert to fraction form
    15,651,629.20/23,477,443.80 = 13,486,790.80/x
  3. Step 3: Cross multiply
    15,651,629.20x = 23,477,443.80 × 13,486,790.80
  4. Step 4: Simplify right side
    15,651,629.20x = 316,635,373,049,357.06
  5. Step 5: Solve for x
    x = 316,635,373,049,357.06/15,651,629.20
  6. Step 6: Final answer
    x = 20,230,186.20

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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.