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Finding the Fourth Proportional to 13,205,606.20, 18,500,445.80 and 13,205,606.20

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Solution

The fourth proportional to 13,205,606.20, 18,500,445.80 and 13,205,606.20 is: 18,500,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205,606.20 : 18,500,445.80 = 13,205,606.20 : x
  2. Step 2: Convert to fraction form
    13,205,606.20/18,500,445.80 = 13,205,606.20/x
  3. Step 3: Cross multiply
    13,205,606.20x = 18,500,445.80 × 13,205,606.20
  4. Step 4: Simplify right side
    13,205,606.20x = 244,309,601,759,243.97
  5. Step 5: Solve for x
    x = 244,309,601,759,243.97/13,205,606.20
  6. Step 6: Final answer
    x = 18,500,445.80

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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.