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Finding the Fourth Proportional to 18,150,901.80, 25,430,158.20 and 18,150,901.80

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Solution

The fourth proportional to 18,150,901.80, 25,430,158.20 and 18,150,901.80 is: 25,430,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150,901.80 : 25,430,158.20 = 18,150,901.80 : x
  2. Step 2: Convert to fraction form
    18,150,901.80/25,430,158.20 = 18,150,901.80/x
  3. Step 3: Cross multiply
    18,150,901.80x = 25,430,158.20 × 18,150,901.80
  4. Step 4: Simplify right side
    18,150,901.80x = 461,580,304,246,664.75
  5. Step 5: Solve for x
    x = 461,580,304,246,664.75/18,150,901.80
  6. Step 6: Final answer
    x = 25,430,158.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.