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Finding the Fourth Proportional to 35,503,286.80, 53,254,930.20 and 18,461,745.40

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Solution

The fourth proportional to 35,503,286.80, 53,254,930.20 and 18,461,745.40 is: 27,692,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,503,286.80 : 53,254,930.20 = 18,461,745.40 : x
  2. Step 2: Convert to fraction form
    35,503,286.80/53,254,930.20 = 18,461,745.40/x
  3. Step 3: Cross multiply
    35,503,286.80x = 53,254,930.20 × 18,461,745.40
  4. Step 4: Simplify right side
    35,503,286.80x = 983,178,962,647,171
  5. Step 5: Solve for x
    x = 983,178,962,647,171/35,503,286.80
  6. Step 6: Final answer
    x = 27,692,618.10

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1.5x scale

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.