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Finding the Fourth Proportional to 14,858,809.20, 20,759,817.60 and 14,858,809.20

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Solution

The fourth proportional to 14,858,809.20, 20,759,817.60 and 14,858,809.20 is: 20,759,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,858,809.20 : 20,759,817.60 = 14,858,809.20 : x
  2. Step 2: Convert to fraction form
    14,858,809.20/20,759,817.60 = 14,858,809.20/x
  3. Step 3: Cross multiply
    14,858,809.20x = 20,759,817.60 × 14,858,809.20
  4. Step 4: Simplify right side
    14,858,809.20x = 308,466,168,745,201.94
  5. Step 5: Solve for x
    x = 308,466,168,745,201.94/14,858,809.20
  6. Step 6: Final answer
    x = 20,759,817.60

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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.