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Finding the Fourth Proportional to 18,145,672.20, 25,437,533.40 and 18,145,672.20

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Solution

The fourth proportional to 18,145,672.20, 25,437,533.40 and 18,145,672.20 is: 25,437,533.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,672.20 : 25,437,533.40 = 18,145,672.20 : x
  2. Step 2: Convert to fraction form
    18,145,672.20/25,437,533.40 = 18,145,672.20/x
  3. Step 3: Cross multiply
    18,145,672.20x = 25,437,533.40 × 18,145,672.20
  4. Step 4: Simplify right side
    18,145,672.20x = 461,581,142,652,951.44
  5. Step 5: Solve for x
    x = 461,581,142,652,951.44/18,145,672.20
  6. Step 6: Final answer
    x = 25,437,533.40

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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.