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Finding the Fourth Proportional to 14,652,028.80, 21,978,043.20 and 10,117,065.60

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Solution

The fourth proportional to 14,652,028.80, 21,978,043.20 and 10,117,065.60 is: 15,175,598.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,028.80 : 21,978,043.20 = 10,117,065.60 : x
  2. Step 2: Convert to fraction form
    14,652,028.80/21,978,043.20 = 10,117,065.60/x
  3. Step 3: Cross multiply
    14,652,028.80x = 21,978,043.20 × 10,117,065.60
  4. Step 4: Simplify right side
    14,652,028.80x = 222,353,304,814,033.91
  5. Step 5: Solve for x
    x = 222,353,304,814,033.91/14,652,028.80
  6. Step 6: Final answer
    x = 15,175,598.40

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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.