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Finding the Fourth Proportional to 12,290,610.90, 17,174,968.80 and 12,290,610.90

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Solution

The fourth proportional to 12,290,610.90, 17,174,968.80 and 12,290,610.90 is: 17,174,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,610.90 : 17,174,968.80 = 12,290,610.90 : x
  2. Step 2: Convert to fraction form
    12,290,610.90/17,174,968.80 = 12,290,610.90/x
  3. Step 3: Cross multiply
    12,290,610.90x = 17,174,968.80 × 12,290,610.90
  4. Step 4: Simplify right side
    12,290,610.90x = 211,090,858,740,439.94
  5. Step 5: Solve for x
    x = 211,090,858,740,439.94/12,290,610.90
  6. Step 6: Final answer
    x = 17,174,968.80

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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.